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201. |
The disease caused by Asbestos is - |
A. | Emphysema |
B. | Paralysis |
C. | Diarrhoea |
D. | Dysentery |
Answer» A. Emphysema | |
Explanation: Emphysema is the common lung disease caused by asbestos. Emphysema is a lung condition in which tiny air sacs in the lungs - alveoli - fill up with air. As the air continues to build up in these sacs, they expand, and may break or become damaged and form scar tissue. The patient becomes progressively short of breath. Emphysema is a type of COPD (chronic obstructive pulmonary disease). |
202. |
In the eye, colour vision is effected by the presence of - |
A. | Choroid coat |
B. | Sclerotic coat |
C. | Rods |
D. | Cones |
Answer» D. Cones | |
Explanation: Cone cells, or cones, are photoreceptor cells in the retina of the eye that are responsible for color vision, they function best in relatively bright light, as opposed to rod cells that work better in dim light. Cone cells are densely packed in the fovea, but quickly reduce in number towards the periphery of the retina. It allow the perception of colour |
203. |
During photosynthesis the liberated gas is |
A. | Carbon dioxide |
B. | oxygen |
C. | Nitrogen |
D. | Hydrogen |
Answer» B. oxygen | |
Explanation: Photosynthesis is a process used by plants and other organisms to convert the light energy captured from the sun into chemical energy that can be used to fuel the organism's activities. Photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product.' Photosynthesis is vital for all aerobic life on Earth. |
204. |
Which one of the following is considered as the drug of last resort for human beings? |
A. | Penicillin |
B. | Tetracycline |
C. | Chloramphenicol |
D. | Streptomycin |
Answer» C. Chloramphenicol | |
Explanation: Chloramphenicol is an antibiotic useful for the treatment of a number of bacterial infections. This includes use as an eye ointment to treat conjunctivitis. |
205. |
Which one of the following is not a digestive enzyme? |
A. | Pepsin |
B. | Renin |
C. | Insulin |
D. | Amylopsin |
Answer» C. Insulin | |
Explanation: Insulin is a peptide hormone, produced by beta cells of the pancreas, and is central to regulating carbohydrate and fat metabolism in the body. Insulin causes cells in the liver, skeletal muscles, and fat tissue to take up glucose from the blood. In the liver and skeletal muscles, glucose is stored as glycogen, and in adipocytes it is stored as triglycerides. |
206. |
The ‘Theory of Evolution’ wasput forward by - |
A. | Louis Pasteur |
B. | Aristotle |
C. | Gregor Mendel |
D. | Charles Darwin |
Answer» D. Charles Darwin | |
Explanation: Charles Darwin had proposed "theory of Evolution". The theory of evolution came into view by the reawakening of ancient materialistic philosophies and became widespread in the 19th century. This philosophy supposes that matter is absolute and infinite. This materialistic philosophy does not hold anything to be real except the matter, so it tries to explain the universe and nature through purely material factors. |
207. |
Which of the following is an air-borne disease? |
A. | Measles |
B. | Typhoid |
C. | Pink eye |
D. | None of the above |
Answer» A. Measles | |
Explanation: Airborne diseases are the infections spread by airborne transmissions including Chickenpox, Anthrax, Influenza, Measles, Smallpox, Cryptococcosis and Tuberculosis. |
208. |
Which of the following book is centered on “Environment"? |
A. | The Late, Great Planet Earth |
B. | Silent Spring |
C. | Here I stand |
D. | And then One Day |
Answer» B. Silent Spring | |
Explanation: Rachel Carson carefully explains what the balance of nature is. She describes the balance of nature of the soil, of the earth's waters, and of the organisms of the earth. |
209. |
Which of the following elements is obtained from the sea algae? |
A. | Argon |
B. | Sulphur |
C. | Vanadium |
D. | Iodine |
Answer» D. Iodine | |
Explanation: Fusus vesiculosus is a brown seaweed and is also known as bladder wrack or red algae, according to the National Institutes of Health (NTH). Red marine algae and other seaweeds are common components of Asian diets and are often used in dietary supplements. The high iodine content in red marine algae can lead to hypothyroidism or hyperthyroidism. |
210. |
Which of the following is not a component of chlorophyll? |
A. | Hydrogen |
B. | Magnesium |
C. | Carbon |
D. | Calcium |
Answer» D. Calcium | |
Explanation: Chlorophyll, a photo-receptive pigment, allows plants to absorb sunlight and synthesize it into carbohydrates and oxygen. The basic formula for photosynthesis takes 6 molecules of carbon dioxide and 6 molecules of water, reacts them in the presence of chlorophyll and sunlight (a catalyst), and converts them into 1 molecule' of glucose and 6 molecules of oxygen. Chlorophyll is a chlorine pigment, which is structurally similar to and produced through the same metabolic pathway as other porphyrin pigments such as home. |
211. |
Development of an egg without - fertilization is called |
A. | Gametogenesis |
B. | Parthenogenesis |
C. | Oogenesis |
D. | Metamorphosis |
Answer» B. Parthenogenesis | |
Explanation: Parthenogenesis is a form of asexual reproduction in which growth and development of embryos occur without fertilization. In plants, parthenogenesis means development of an embryo from an unfertilized edd call. |
212. |
In the process of dialysis, used on patients with affected kidneys, the phenomenon involved is |
A. | Diffusion |
B. | Absorption |
C. | Osmosis |
D. | Electrophoresis |
Answer» C. Osmosis | |
Explanation: Dialysis is the artificial process of getting rid of waste (diffusion) and unwanted water (ultrafiltration) from the blood. This process is naturally done by our kidneys. It is the artificial replacement for lost kidney function (renal replacement therapy). The elimination of unwanted water (ultrafiltration) occurs through osmosis - as the dialysis solution has a high concentration of glucose, it results in osmotic pressure which causes the fluid to move from the blood into the dialysate. |
213. |
The language used in writing the scientific name of animals is - |
A. | French |
B. | Latin |
C. | German |
D. | Dutch |
Answer» B. Latin | |
Explanation: Throughout most of the history, of Western science, all scientific literature waswritten in Latin. Only recently has it been written in spoken languages like English. The use of Latin names has remained so that scientists that speak different languages can understand what they are talking about. Another reason is that many plants and animals have common names that differ by region. Having a Latin name avoids confusion among scientists. |
214. |
Ripe grapes contain – |
A. | Fructose |
B. | Sucrose |
C. | Galactose |
D. | Glucose |
Answer» A. Fructose | |
Explanation: Fully mature or ripe grapes contain about an equal concentration of glucose and fructose, which are the simple sugars yeast ferment to form alcohol and carbon dioxide. Ripe grapes contain - 20% of glucose. During ripening the sucrose molecules are hydrolyzed (inverted) by the enzyme invertase into glucose and fructose. By the time of harvest, between 15- 25% of the grape will be composed of simple sugars. Both glucose and fructose are six-carbon sugars but three, four, five and seven-carbon sugars are also present in the grape. |
215. |
Of all micro-organisms, the most adaptable and versatile are – |
A. | Viruses |
B. | Bacteria |
C. | Algae |
D. | Fungi |
Answer» A. Viruses | |
Explanation: The viruses are adaptable and versatile with many variations worldwide and they reproduce within the cells of the immune system of infected people. Therefore virus collections are indispensable instruments in the development of a vaccine. Versatility is distinctive abilities and skills in productively managing a variety of situations. Adaptability is the amount of flexibility and versatility an individual has developed to respond to changing interpersonal situations and environmental requirements. |
216. |
According to WHO, the bird flue virus cannot be transmitted through food cooked beyond - |
A. | 60 degrees celsius |
B. | 70 degrees celsius |
C. | 90 degrees celsius |
D. | 100 degrees celsius |
Answer» B. 70 degrees celsius | |
Explanation: Outbreaks by the highly pathogenic H5N 1 avian influenza (bird flu) virus in poultry have raised, concerns about the source of infection and the risk to humans from various exposures. The H5N1 virus is sensitive to heat. Normal temperatures used for cooking (70°C in all parts of the food) will kill the virus. Consumers need to be sure that all parts of the poultry are fully cooked (no pink parts) and that eggs, too, are properly cooked |
217. |
The number of chambers in a human heart is |
A. | Four |
B. | Two |
C. | Three |
D. | Five |
Answer» A. Four | |
Explanation: The human heart has four chambers, two superior atria and two inferior ventricles. The atria are the receiving chambers and the ventricles are the discharging chambers. The pathway of blood through the human heart consists of a pulmonary circuit and a systemic circuit. Deoxygenated blood flows through the heart in one direction, entering through the superior vena cava into the right atrium and is pumped through the tricuspid valve into the right ventricle before being pumped out through the pulmonary valve to the pulmonary arteries into the lungs. |
218. |
Human cloning is permitted in Britain for the purpose of - |
A. | Reproduction |
B. | Research |
C. | Therapeutics |
D. | Genetics |
Answer» C. Therapeutics | |
Explanation: Human cloning is the creation of a genetically identical copy of a human. It does not refer to monozygotic multiple births or the reproduction of humans/animals cells or tissue. There are two commonly discussed types of human cloning: therapeutic cloning and reproductive cloning. Therapeutic cloning involves cloning cells from an adult for use in medicine and transplants, and is an active area of research. Reproductive cloning would involve making cloned humans, for couples wanting to have a child, but cannot naturally. |
219. |
Pick out the viral disease among the following - |
A. | Hepatitis |
B. | Meningitis |
C. | Arthritis |
D. | Nephritis |
Answer» A. Hepatitis | |
Explanation: Hepatitis is a medical condition defined by the inflammation of the liver and characterized by the presence of inflammatory cells in the tissue of the organ. The condition can be self-limiting (healing on its own) or can progress to fibrosis (scarring) and cirrhosis. A group of viruses known as the hepatitis viruses cause most cases of hepatitis worldwide, but hepatitis can also be caused by toxins (notably alcohol, certain medications, some industrial organic solvents and plants), other infections and autoimmune diseases. |
220. |
EEG records the activity of - |
A. | heart |
B. | lungs |
C. | brain |
D. | muscles |
Answer» C. brain | |
Explanation: Electroencephalography (EEG) is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the brain. In clinical contexts, EEGrefers to the recording of the brain's spontaneous electrical activity over a short period of time, usually 20-40 minutes, as recorded from multiple electrodes placed on the scalp. |
221. |
The colotr of cow's milk is slightly yellow due to the presence of - |
A. | Xanthophyll |
B. | Riboflavin |
C. | Ribulose |
D. | Carotene |
Answer» D. Carotene | |
Explanation: Yellow milk is commonly related to the diet that that cow is on. Grass is the most common diet that will turn milk (and fat) yellow, due to a compound in the grass that makes it green called Carotene. Carotene is a kind of plant-steriod that makes plants the vibrant. colours they are, and this carries through the body of the grazer that eats these plants. |
222. |
Antibodies are mainly synthesized from |
A. | Megakaryocyte |
B. | Monocyte |
C. | Lymphocyte |
D. | Histiocyte |
Answer» C. Lymphocyte | |
Explanation: Antibodies are produced by specialized white blood cells called B lymphocytes (or B cells). |
223. |
Penicillin is widely used as – |
A. | an antiseptic |
B. | a disinfectant |
C. | an antibiotic |
D. | an insecticide |
Answer» C. an antibiotic | |
Explanation: Penicillin V is an antibiotic in the penicillin group of drugs. It fights bacteria in your body. |
224. |
Antacids are found in medicines that cure – |
A. | eyesight |
B. | stomachache |
C. | pimpus |
D. | headache |
Answer» B. stomachache | |
Explanation: Antacids are a class of medicines that neutralize acid in the stomach. |
225. |
Where do plants synthesize protein from? |
A. | Fatty Acids |
B. | Sugar |
C. | Amino Acids |
D. | Starch |
Answer» C. Amino Acids | |
Explanation: Amino acids are the molecular building blocks of proteins. So proteins are synthesized from them. Essential ami acids are histidine, isoleucine, leucine, methionine, phenyl lanine, threonine, tryptophan, valine, and lysine. |
226. |
The damage of the human body due to radiation (x-rays or y-rays etc,) is measured in |
A. | Rads |
B. | Rems |
C. | Roentgen |
D. | Curie |
Answer» A. Rads | |
Explanation: The rad is a unit of absorbed radiation dose, defined as 1 rad = 0.01 Gy = 0.01 J/kg. It was originally defined in CGS units in 1953 as the dose causing 100 ergs of energy to be absorbed by one gram of matter. |
227. |
Mangifera indica is the phylum – |
A. | Guava |
B. | Mango |
C. | Amla |
D. | Jack fruit |
Answer» B. Mango | |
Explanation: Mangifera indica is commonly known as mango. If is found in the wild in Bangladesh. |
228. |
Amoebiasis is causing - |
A. | Dysentery |
B. | Fever |
C. | Severe cold |
D. | Headache and cold |
Answer» A. Dysentery | |
Explanation: Amoebiasis refers to infection caused by the amoeba Entamoeba histolytica. Amoebiasis is estimated to cause 70,000 deaths per year worldwide. Symptoms can range from mild diarrhea to dysentery with blood and mucus in the stool. E. histolytica is usually a commensal organism. |
229. |
The nitrogen in the ecosystem is circulated by - |
A. | Earthworms |
B. | Bacteria |
C. | Fungi |
D. | protozoa |
Answer» B. Bacteria | |
Explanation: Bacteria play a great role in nitrogen thation. Nitrogen fixing bacteria inhabit legume root nodules. Nitrogenase is the enzyme in nitrogen-fixing bacteria that catalyzes the conversion of atmospheric nitrogen into ammonia. |
230. |
Which of the following is not a part of the Darwin's theory of evolution? |
A. | Natural selection |
B. | Struggle for existence |
C. | Survival of the fittest |
D. | Inheritance of acquired characters |
Answer» D. Inheritance of acquired characters | |
Explanation: The inheritance of acquired characteristics is a hypothesis that physiological changes acquired over the life of an organism such as the enlargement of a muscle throughrepeated use) may be transmitted to offspring. It is also commonly referred to as the theory of adaptation equated with the evolutionary theory of French naturalist Jean-Baptiste Lamarck.' |
231. |
The brain of a computer is - |
A. | C.P.U. |
B. | C.D. |
C. | Floppy disc |
D. | Megabyte |
Answer» A. C.P.U. | |
Explanation: The CPU or Central Processing Unit is the "brain" of the computer, it is the 'compute' in computer. Computer CPUs (processors) are composed of thin layers of thousands of transistors. Transistors are tiny, nearly microscopic bits of material that will block electricity when the electricity is only a weak charge, but will allow the electricity pass through when the electricity is strong enough. |
232. |
Who is the father of Biology? |
A. | Lamarck |
B. | Robert Hooke |
C. | Aristotle |
D. | Pasteur |
Answer» C. Aristotle | |
Explanation: ARISTOTLE, the Greek philosopher is regarded as the father of biology. In 4th century BC, he traveled to Lesvos (an Aegean island) and got fascinated by diversity of wildlife and wrote books like: De Anima, History of Animals etc. |
233. |
The total number of bones in our body is - |
A. | 226 |
B. | 206 |
C. | 256 |
D. | 236 |
Answer» B. 206 | |
Explanation: 0 |
234. |
Which category of compound is most concentrated energy source? |
A. | Fats |
B. | Starch |
C. | Proteins |
D. | Vitamins |
Answer» A. Fats | |
Explanation: Fat is the most concentrated source of food energy. Fat that is liquid at room temperature is called an oil. |
235. |
Which among the following blood protein regulates the amount of water in plasma? |
A. | Albumin |
B. | Globulin |
C. | Fibulin |
D. | No option is correct |
Answer» A. Albumin | |
Explanation: The blood contains a large number of plasma proteins with albumin that creates a concentration gradient between the blood and the fluid in the surrounding tissue |
236. |
Which of the following vitamins is stored in the liver? |
A. | Vitamin A |
B. | Vitamin E |
C. | Vitamin C |
D. | Vitamin K |
Answer» A. Vitamin A | |
Explanation: Fat-soluble vitamins are stored in the body in organs such as the liver. Most of the vitamin A that we consume goes to the liver to be stored until it is needed by another part of the body. |
237. |
Which of the following is a Parthenocarpic fruit? |
A. | Banana |
B. | Apple |
C. | Mulberry |
D. | Strawberry |
Answer» A. Banana | |
Explanation: Banana is considered as good example of parthenocarpy because it produces flowers without fertilization and they are induced through the application of growth hormones and such fruits are seedless. |
238. |
Which one of these is a communicable disease? |
A. | Diabetes |
B. | Diphtheria |
C. | Arthritis |
D. | Cancer |
Answer» B. Diphtheria | |
Explanation: Diphtheria is an upper respiratory tract illness caused by Corynebacterium diphtheriae, a facultative anaerobic, Gram- positive bacterium. Diphtheria is a contagious disease spread by direct physical contact or breathing the aerosolized secretions of infected individuals. Diphtheria toxin is produced by C. diphtheriae only when infected with a bacteriophage that integrates the toxin-encoding genetic elements into the bacteria. |
239. |
The concentration of which of the following decreases in anaemia? |
A. | Haemoglobin |
B. | Collagen |
C. | Hyoglobin |
D. | Myosin |
Answer» A. Haemoglobin | |
Explanation: Anemia is a decrease in number of red blood cells (RBCs) or less than the normal quantity of hemoglobin in the blood. However, it can include decreased oxygen-binding ability of each hemoglobin molecule due to deformity or lack in numerical development as in some other types of hemoglobin deficiency. Because hemoglobin (found inside RBCs) normally carries oxygen from the lungs to the capillaries, anemia leads to hypoxia (lack of oxygen) in organs. |
240. |
Dolly, the World's First cloned animal was a – |
A. | sheep |
B. | cow |
C. | goat |
D. | pig |
Answer» A. sheep | |
Explanation: Dolly (5 July 1996 - 14 February 2003) was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Rollin Institute and the biotechnolov company PPL Therapeutics near Edinburgh in Scotland. The funding for Dolly's cloning was provided by PPL Therapeutics and the Ministry of Agriculture. She was born on 5 July 1996 and she lived until the age of six, at which point she died from a progressive lung disease. |
241. |
Vegetables are easily perishable because of their high content of - |
A. | sugars |
B. | water |
C. | vitamins |
D. | enzymes |
Answer» B. water | |
Explanation: The perishability of food items depends a lot on their water content. High moisture decides their perishability or longer shelf life. Perishable food includes fruits and vegetables, fresh meat, foods purchased from chill cabinets, freshly cooked food stored to be used later. Vegetables normally contain more than 80-90 per cent water. Top vegetables by water content: Cucumber 96 %, Zucchini 95%, Spinach: 95 per cent, Tomato: 94 per cent, etc. Even potato contains about 79 per cent water in it. |
242. |
A universal recipient belongs to the blood group - |
A. | AB |
B. | O |
C. | B |
D. | A |
Answer» A. AB | |
Explanation: Blood type AB is the universal recipient because individuals who have blood type AB does not have the antibodies. They do not have the anti-A or Anti-B antibodies. They can receive all types of blood types: A, B, O, AB. |
243. |
The vitamin that helps in blood clotting is - |
A. | Vitamin C |
B. | Vitamin D |
C. | Vitamin E |
D. | Vitamin K |
Answer» D. Vitamin K | |
Explanation: Vitamin K is a necessary participant in synthesis of several proteins that mediate both coagulation and anticoagulation. Vitamin K deficiency is manifest as a tendency to bleed excessively. Vitamin K is found in a number of foods, including leafy greens, cauliflower and, liver. However, the chief source of vitamin K is synthesis by bacteria in the large intestine, and in most cases, absence of dietary vitamin K is not at all deleterious. Vitamin K is a fat-soluble vitamin and both dietary and microbial vitamin K is absorbed into intestinal lymph along with other lipids. |
244. |
The disease in which the sugar level of blood increases is known as - |
A. | Diabetes mellitus |
B. | Diabetes insipid us |
C. | Diabetes imperfectus |
D. | Diabetes sugarensis |
Answer» A. Diabetes mellitus | |
Explanation: Diabetes mellitus, or simply diabetes, is a group of metabolic diseases in which a person has high blood sugar, either because the pancreas does not produce enough insulin, or because cells do not respond to the insulin that is produced. This high blood sugar |
245. |
Which one of the following is not a mosquito borne disease’? |
A. | Dengue fever |
B. | Filariasis |
C. | Sleeping sickness |
D. | Malaria |
Answer» C. Sleeping sickness | |
Explanation: Sleeping sickness is infection with germs carried by certain flies. It results in swelling of the brain, Sleeping sickness is caused by two germs, in 2007. The Government of India honoured Dev Anand with the Padma Bhushan in 2001 and the Dadasaheb Phalke Award in 2002 for his contribution to Indian cinema. Rekha and Shabana Azmi have not received this award so far. The Government of India honoured Dilip Kumar with the Padma Bhushan in 1991 and the Dadasaheb Phalke Award in 1994 for his contributions towards Indian cinema. |
246. |
M.R.I. stands for - |
A. | Metered Resonance Imaging |
B. | Magnetic Resonance Imaging |
C. | Magnetic Reaction Imaging |
D. | Metered Reaction Imaging |
Answer» B. Magnetic Resonance Imaging | |
Explanation: Magnetic Resonance Imaging (MRI) is a medical imaging technique used in radiology to visualize internal structures of the body in detail. MRT makes use of the property of nuclear magnetic resonance (NMR) to image nuclei of atoms inside the body. An WIRI scanner is a device in which the patient lies within a large, powerful magnet where the magnetic field is used to align the magnetization of some atomic nuclei in the body, and radio frequency fields to systematically alter the alignment of this magnetization. |
247. |
Raja Rao the famous Indian Novelist who died on 8 July 2006. The title of his first novel was - |
A. | Kanthapura |
B. | The Serpent and The Rope |
C. | The Chess Master and His Moves |
D. | The Cat and Shakespeare |
Answer» A. Kanthapura | |
Explanation: Raja Rao's novel Kanthapura (1938) is the first major Indian novel in English. It is a fictional but realistic account of how the great majority of people in India lived their lives under British rule and how they responded to the ideas and ideals of Indian nationalism. The book has been considered by many to be the first classic modern Indian writing in English and is thought of as one of the best, if not the best, Gandhian novels in English. |
248. |
What is the normal blood sugar level of a human being? |
A. | Close to 10 mg/ml |
B. | 120 - 150 mg/dl |
C. | 80 - 90 mg/dl |
D. | 150 — 200 mg/dl |
Answer» B. 120 - 150 mg/dl | |
Explanation: The blood sugar concentration or blood glucose level is the amount of glucose (sugar) present in the blood of a human or animal. The body naturally tightly regulates blood glucose levels as a part of metabolic homeostasis. The mean normal blood glucose level in humans is about 4 mM (4 mmol/L or 72 mg/c1L, i.e. milligrams/deciliter); however, this level fluctuates throughout the day. Glucose levels are usually lowest in the morning, before the first meal of the day (termed "the fasting level"), and rise after meals for an hour or two by a few millimolar. |
249. |
Literal meaning of the term “ho*mo Sapiens” is - |
A. | Man — The Wise |
B. | Man — The Supreme |
C. | Man — The Omnivore |
D. | Man — The Fool |
Answer» A. Man — The Wise | |
Explanation: Humans are primates of the family Hominidae, and the only extant species of the genus Homo. They originated in Africa, where they reached anatomical modernity about 200,000 years ago. The species binomial Homo sapiens was coined by Carl Linnaeus in his 18th century work Systema Naturae, and he himself is the lectotype specimen. The generic name Homo is a learned 18th century derivation from Latin homb "man", ultimately "earthly being" (Old Latin hemO, a cognate to Old English puma "man", meaning 'earth' or `ground'). The species- name sapiens means "wise" or "sapient". |
250. |
The normal temperature of the human body is – |
A. | 37°C |
B. | 37°F |
C. | 104°F |
D. | 36.8°C |
Answer» A. 37°C | |
Explanation: The normal human body temperature is often stated as 36.5–37.5 °C. |
251. |
Eyes of potato are useful for - |
A. | Nutrition |
B. | Respiration |
C. | Reproduction |
D. | Vegetative propagation |
Answer» D. Vegetative propagation | |
Explanation: Any potato variety can be propagated vegetatively by planting tubers, pieces of tubers, cut to include at least one or two eyes, or also by cuttings, a practice used in greenhouses for the production of healthy seed tubers. Some commercial potato varieties do not produce seeds at all (they bear imperfect flowed long (4.5 to 9 is usually a whopping 15 to 30 feet meters) and lives in the small intestine. An infected person usually has only one or two worms. The tapeworms use their head, called the scolex, to attach themselves to the intestinal |
252. |
In which part of the eye lies the pigment that decides the colour of the eyes of a person’? |
A. | Corea |
B. | Choroid |
C. | Iris |
D. | Vitreous body |
Answer» C. Iris | |
Explanation: The iris is a thin, circular structure in the eye, responsible for controlling the diameter and size of the pupils and thus the amount of light reaching the retina. "Eye color" is the color of the iris, which in humans can be green, blue, or brown. In some cases it can be hazel (a combination of light brown, green and gold), grey, violet, or even pink. In response to the amount of light entering the eye, muscles attached to the iris expand or contract the aperture at the center of the iris, known as the pupil. The larger the pupil, the more light can enter, |
253. |
Which of the following food items is rich in iron? |
A. | Rice |
B. | Apple |
C. | Pulses |
D. | Orange |
Answer» B. Apple | |
Explanation: Apples are a great, healthy food, but even with the skin they do not contain a large amount of iron. Apples contain 11 milligrams of iron per 100 grams. A gram is a measure of weight. Fruit as a food group is not a great iron source but it does play an important role in ourability to absorb iron. Fruit is often loaded with vitamin C, a vitamin that will actually help to utilize the iron in vegetarian foods; apples are a modest source of vitamin C. |
254. |
Who discovered Cholera germs? |
A. | Robert Koch |
B. | Rene Laennec |
C. | Dreser |
D. | Hansen |
Answer» A. Robert Koch | |
Explanation: In 1883, Koch worked with a French research team in Alexandria, Egypt, studying cholera. Koch identified the vibrio bacterium that caused cholera. |
255. |
What is the limit of MG/DL, of blood sugar in the normal person at the time of fast? |
A. | 40-60 |
B. | 120-150 |
C. | 70-100 |
D. | 160-200 |
Answer» C. 70-100 | |
Explanation: The mean normal blood glucose level in humans is about 4 mM (4 mmol/L, or 72 mg/dL, i.e. milligrams/deciliter); however, this level fluctuates throughout the day. Glucose levels are usually lowest in the morning, before the first meal of the day (termed "the fasting level"), and rise after meals for an hour or two by a few millimolar. |
256. |
The cross-section of a stem of tree has fifty rings, what is the age of the tree? |
A. | 50 months |
B. | 5 years |
C. | 25 years |
D. | 50 years |
Answer» D. 50 years | |
Explanation: Dendrochronology or tree-ring dating is the scientific method of dating based on the analysis of patterns of tree rings, also known as growth rings. Dendrochronology can date the time at which tree rings were formed, in manytypes of wood, to the exact calendar year. Growth rings are the result of new growth in the vascular cambium, a layer of cells near the bark that is classified as a lateral meristem. |
257. |
Onion is a modified form of – |
A. | leaf |
B. | stern |
C. | root |
D. | None of these |
Answer» B. stern | |
Explanation: An onion has a modified form of stem called a bulb, or more specifically a tunicate bulb. In this type of modified stems, the stem is enclosed by a covering of leaves and it is underground. The bulb contains a few outside layers that are dry and membranous that encircles the bulb, which is where tunicate comes from. Nutrients for the plant are stored within the bulb. |
258. |
The pollination of maize takes place by |
A. | self-pollination |
B. | pollination by insects |
C. | pollination by air |
D. | pollination by rain |
Answer» C. pollination by air | |
Explanation: Maize (called corn in some parts of the world) is pollinated by air. The male anthers let go of their pollen and it blows over to a nearby female flower on another corn plant. Most of the flowers are either male or female on a corn, rather than both sexes in one flower. Maize flowers have evolved to use air for pollination. |
259. |
Sweetex used by the diabetic patients has energy content of : |
A. | Five calories |
B. | Ten calories |
C. | Hundred calories |
D. | Zero calories |
Answer» D. Zero calories | |
Explanation: Low-calorie sweeteners are sugar substitutes that have zero calories and do not raise blood glucose levels through eating them, which makes them a preferable choice for diabetic people over sugar. |
260. |
The element which is the most abundant in the human body is : |
A. | Oxygen |
B. | Carbon |
C. | Iron |
D. | Nitrogen |
Answer» A. Oxygen | |
Explanation: The generation and maintenance of all our life processes are supported by four basic components: carbohydrates, water, proteins and energy. Most scientists agree that oxygen is actually the over-riding key ingredient in all four of these life components. 80% of all our metabolic energy production is created by oxygen! The human body is largely composed of oxygen. All metabolic processes in the body are regulated by oxygen. |
261. |
Animals do not have enzyme systems which enable them to make use of the energy from - |
A. | fat |
B. | water |
C. | protein |
D. | carbohydrate |
Answer» A. fat | |
Explanation: Although fat is a common way of storing energy. In vertebrates such as humans the fatty acids in these stores cannot be conberted to glucose through gluconeogenesis as these organisms cannot convert acetyl CoA in to pyruvate plants do. |
262. |
Who discovered sex hormones? |
A. | Dreser |
B. | Eugen Steinach |
C. | Edward Calvin |
D. | Samuel Cohen |
Answer» B. Eugen Steinach | |
Explanation: Eugen Steinach discovered the sex hormones in 1921. He conducted experiments in the transplantation of a male guinea pig's testes into a female and the castration of the male. The testes secretion, now known as testosterone, resulted in the female guinea pig developing male sexual behavior such as mounting the partner. This led Steinach to theorize that the gland's secretions were responsible for sexuality. |
263. |
Fermentation is a process of decomposition of an organic compound by |
A. | catalysts |
B. | enzymes |
C. | carbanions |
D. | free radicals |
Answer» B. enzymes | |
Explanation: Fermentation in food processing typically is the conversion of carbohydrates to alcohols and carbon dioxide or organic acids using yeasts, bacteria, or a combination there of, under anaerobic conditions. Fermentation in simple terms is the chemical conversion of sugars into ethanol. Both alcoholic fermentation and glycolysis are anaerobic fermentation processes that begin with the sugar glucose. Glycolysis requires 11 enzymes which degrade glucose to lactic acid. Alcoholic fermentation follows the same enzymatic pathway for the first 10 steps. |
264. |
The branch of agriculture which deals with the feeding, shelter, health and breeding of the domestic animals is called - |
A. | Dairy Science |
B. | Veterinary Science |
C. | Poultry |
D. | Animal Husbandry |
Answer» B. Veterinary Science | |
Explanation: Veterinary medicine is widely practiced, both with and without professional supervision. Professional care is most often led by a veterinary physician (also known as a vet, veterinary surgeon or veterinarian), but also byparaveterinary workers such as veterinary nurses or technicians. This can be augmented by other paraprofessionals with specific specialism such as animal physiotherapy or dentistry, and species relevant roles such as farriers. |
265. |
Edward Jenner is associated with - |
A. | Cholera |
B. | Typhoid |
C. | Small Pox |
D. | Paralysis |
Answer» C. Small Pox | |
Explanation: Edward Anthony Jenner, (17 May, 1749 - 26 January, 1823) was an English physician and scientist from Berkeley, Gloucestershire, who was the pioneer of smallpox vaccine. He is often called "the father of immunology", and his work is said to have "saved more lives than the work of any other man". Jenner contributed papers on angina pectoris, ophthalmia, and cardiac valvular disease and commented on cowpox. |
266. |
Carbohydrate is stored in the body as |
A. | glucose |
B. | starch |
C. | glycogen |
D. | sucrose |
Answer» C. glycogen | |
Explanation: Glycogen is a multibranched polysaccharide that serves as a form of energy storage in animals and fungi. In humans, glycogen is made and stored primarily in the cells of the liver and the muscles, and functions as the secondary long-term energy storage (with the primary energy stores being fats held in adipose tissue). Glycogen is the analogue of starch, a glucose polymer in plants, and is sometimes referred to as animal starch, having a similar structure to amylopectin but more extensively branched and compact than starch. Polysaccharide represents the main storage form of glucose in the body. |
267. |
Which one of the following substances is used for preservation of food grains? |
A. | Sodium benzoate |
B. | Vinegar |
C. | Sodium chloride |
D. | Potassium permanganate |
Answer» A. Sodium benzoate | |
Explanation: Sodium benzoate is used for the preservation of food. It has the chemical formula NaC6H5CO2. It is the sodium salt of benzoic acid and exists in this form when dissolved in water. It can be produced by reacting sodium hydroxide with benzoic acid. It is bacteriostatic and ftmgistatic under acidic conditions. |
268. |
Which of the following animals has the longest life span? |
A. | Elephant |
B. | Crocodile |
C. | Dog |
D. | Tortoise |
Answer» D. Tortoise | |
Explanation: Tortoises generally have lifespans comparable with those of human beings, and some individuals are known to have lived longer thaw. 150 years. Because of this, they symbolize longevity in some cultures, such as China. The oldest tortoise ever recorded, and one of the oldest. individual animals ever recorded, was MI Malila, which was presented to the Tongan royal family by the British explorer Captain Cook shortly after its birth in 1777. |
269. |
Which animal produces the biggest baby? |
A. | Camel |
B. | Lion |
C. | Elephant |
D. | Blue Whale |
Answer» D. Blue Whale | |
Explanation: Births in elephants tend to take place during the rains. Calves are born 85 cm (33 in) tall and weigh around 120 kg (260 lb). The sperm whale produces the largest baby that weighs about 1 ton at birth. The newborn can instinctively swim for the first 10 seconds with help from its mother and swim alone within 30 minutes after birth. When baby blue whales arefirst born, they weigh over 3,000 kg (3 tones), about the same weight as a. fully grown hippopotamus. Once born, a baby blue whale takes two years to reach a weight. of 26,000 kg (26 tones). No other living creature grows so quickly. |
270. |
Which of the following is effective against tuberculosis? |
A. | Penicillin |
B. | Chloromycetin |
C. | Terramycin |
D. | Streptomycin |
Answer» D. Streptomycin | |
Explanation: Streptomycin is an antibiotic drug, the first of a class of drugs called amino glycosides to be discovered, and it was the first antibiotic remedy for tuberculosis. It is derived from the actinobacterium Streptomyces griseus. Streptomycin is a bactericidal antibiotic. Streptomycin cannot be given orally, but must be administered by regular intramuscular injections. |
271. |
Which one of the following can be synthesized by Liver - |
A. | Vitamin -—A |
B. | Vitamin — E |
C. | Vitamin — B |
D. | Vitamin - K |
Answer» D. Vitamin - K | |
Explanation: Vitamin Kis a group of structurally similar, fat-soluble vitamins that are needed for the posttranslational modification of certain proteins required for blood coagulation and in metabolic pathways in bone and other tissue. This group of vitamins includes two natural vitamers: vitamin K1 and vitamin K2. Populations with an increased prevalence of vitamin K deficiency include those who suffer from liver damage or disease (e.g. alcoholics), cystic fibrosis, or inflammatory bowel diseases, or have recently had abdominal surgeries. |
272. |
Which one of the following is not a true fish? |
A. | Silver fish |
B. | Saw fish |
C. | Hammer fish |
D. | Sucker fish |
Answer» A. Silver fish | |
Explanation: Lepisma saccharina, frequently called a silverfish or fish moth is a small, wingless insect in the order Thysanura. Silverfish are always wingless and are 'silvery to brown in colour because their bodies are covered with fine scales. They are generally soft bodied. Its common name derives from the animal's silvery light grey and blue colour, combined with the fish-like appearance of its movements, while the scientific name indicates the silverfish's diet of carbohydrates such as sugar or starches. |
273. |
Johann Gregor Mendel is famous for propounding - |
A. | Theory of mutation |
B. | Laws of heredity |
C. | Cell theory |
D. | Theory of acquired characters |
Answer» B. Laws of heredity | |
Explanation: The Laws of Heredity are few; their implications for life are vast. The simplest genetic characteristics are those whose presence depends on the genotype at a single locus; i.e., one gene controls the expression of one characteristic. Such characters are known as Mendelian, after their original discoverer, the Austrian botanist Gregor Mendel. Over 10,000 Mendelian characters have been identified in humans. Mendelian laws of inheritance are statements about the way certain characteristics are transmitted from one generation to another in an organism. |
274. |
Yellow Fever is transmitted by - |
A. | Aedes |
B. | Anopheles |
C. | House-fly |
D. | Culex |
Answer» A. Aedes | |
Explanation: Yellow fever (also known as Yellow Jack and Bronze John) is an acute viral hemorrhagic disease. The virus is a 40 to 50 rim enveloped RNA virus with positive sense of the Flaviviridae family. The yellow fever virus is transmitted by the bite of female mosquitoes (the yellow fever mosquito, Aeries aegypti, and other species) and is found in tropical and subtropical areas in South America and Africa, but not in Asia. The only known hosts of the virus are primates and several species of mosquito. |
275. |
Washing of peeled vegetables removes the vitamin - |
A. | A |
B. | C |
C. | D |
D. | E |
Answer» B. C | |
Explanation: B-complex vitamins and vitamin C are water-soluble vitamins that are not stored in the body and must be replaced each day. These vitamins are easily destroyed or washed out during food storage and preparation. Fat- soluble vitamins—vitamins A, D, E and K dissolve in fat before they are absorbed in the blood stream to carry out their functions. Excesses of these vitamins are stored in the liver. |
276. |
For the aquatic organisms, the source of food is – |
A. | Phytoplankton |
B. | Sea Weed |
C. | Aqua plankton |
D. | Zooplankton |
Answer» D. Zooplankton | |
Explanation: Zooplankton are a type of heterotrophic plankton that range from microscopic organisms to large species, such as jellyfish. |
277. |
'Crabs' belongs to the phylum of – |
A. | Mollusca |
B. | Cnidaria |
C. | Arthropoda |
D. | Platyhelminthes |
Answer» C. Arthropoda | |
Explanation: Crabs come from the same family as lobsters, crayfish, shrimp, krill and barnacles, as all are in the subphylum crustacea. They are also in the phylum Arthropoda. |
278. |
A medicine which promotes the secretion of urine is called – |
A. | Adrenaline |
B. | Monouretic |
C. | Diuretic |
D. | Triuretic |
Answer» C. Diuretic | |
Explanation: A diuretic provides a .means of forced diuresis which elevates the rate of urination. In medicine, diuretics are used to treat heart failure, liver cirrhosis, hypertension and certain kidney diseases. Some diuretics, such as acetazolamide, help to make the urine more alkaline and are helpful in increasing excretion of substances such as aspirin in cases of overdose or poisoning. Diuretics are often abused by sufferers of eating disorders, especially bulimics, in attempts at weight loss. |
279. |
The chemicals released by one species of animals in order to attract the other members of the same species are - |
A. | Hormones |
B. | Nucleic acids |
C. | Pheromones |
D. | Steroids |
Answer» C. Pheromones | |
Explanation: A pheromone is a secreted or excreted chemical factor that triggers a social response in members of the same species. Pheromones are chemicals capable of acting outside the body of-the secreting individual to impact the behavior of the receiving individual. There are alarm pheromones, food trail pheromones, sex pheromones, and many others that affect behavior or physiology. Their use among insects has been particularly well documented. |
280. |
Who propounded the theory of natural selection? |
A. | Mendal |
B. | Lamark |
C. | Darwin |
D. | De Vries |
Answer» C. Darwin | |
Explanation: Natural selection is Darwin's most famous theory that was formulated in 1859. |
281. |
Rabies is a – |
A. | Helminthic disease |
B. | Viral disease |
C. | Bacterial disease |
D. | Protozoan disease |
Answer» B. Viral disease | |
Explanation: Rabies is a viral disease that causes inflammation of the brain in humans and other mammals. |
282. |
Which one of the following symptoms of nutritional deficiency disorders is specific to Vitamin C deficiency? |
A. | Cracks on lips |
B. | Spongy bleeding gums |
C. | Pale conjunctivae |
D. | Rashes on skin |
Answer» C. Pale conjunctivae | |
Explanation: Paleness, also known as pale complexion or pallor, is an unusual lightness of skin color compared with your normal complexion. |
283. |
Which organ has finger like outgrowths which are called as Villi (Singular Villus)? |
A. | Large Intestine |
B. | Bladder |
C. | Small Intestine |
D. | Stomach |
Answer» C. Small Intestine | |
Explanation: The inner walls of the small intestine have thousands of finger-like outgrowths called villi (singular villus). The villi increase the absorption of the digested food. |
284. |
Viruses are – |
A. | Cellular |
B. | Acellular |
C. | Unicellular |
D. | Multicellular |
Answer» B. Acellular | |
Explanation: Although they may seem to behave as living things, viruses are actually acellular, nonliving particles. |
285. |
Brain of a normal human adult weighs about - |
A. | 1 lb |
B. | 2 lb |
C. | 3 lb |
D. | 4 lb |
Answer» C. 3 lb | |
Explanation: The adult human brain weighs about 3 pounds (1,300-1,400 g). The adult human brain is about 2% of the total body weight. |
286. |
Number of Eyes in an Earthworm is – |
A. | one |
B. | two |
C. | many |
D. | no eyes |
Answer» D. no eyes | |
Explanation: Earthworms have no eyes, but they do have light receptors and can tell when they are in the dark, or in the light. |
287. |
Accupuncture is - |
A. | a disease of heart |
B. | servicing of tubes and tyres |
C. | a treatment method with needles |
D. | a crop culture |
Answer» C. a treatment method with needles | |
Explanation: Acupuncture is an alternative medicine methodololv originating in ancient China that treats patients by manipulating thin, solid needles that have been inserted into acupuncture points in the skin. According to Traditional Chinese medicine, stimulating these points can correct imbalances in the flow of qi through channels known as meridians. |
288. |
The presence of air cavities is an adaptation of - |
A. | Desert plants |
B. | Trees |
C. | Water plants |
D. | Mesophytes |
Answer» C. Water plants | |
Explanation: Totally submerged plants are the true water plants or hydrophytes. Because they are truly aquatic they have the greatest number of adaptations to life in water. Air-filled cavities often extend throughout the leaves and stems of aquatic plants, providing an internal atmosphere. |
289. |
The vitamin necessary for coagulation of blood is - |
A. | vitamin B |
B. | vitamin C |
C. | vitamin K |
D. | vitamin E |
Answer» C. vitamin K | |
Explanation: Vitamin K is a group of structurally similar, fat-soluble vitamins that the human body requires for complete synthesis of certain proteins that are prerequisites for blood coagulation (K from Koagulation, German for "coagulation"). |
290. |
Ringworm is a disease caused by |
A. | Fungi |
B. | Bacteria |
C. | Virus |
D. | Flies |
Answer» A. Fungi | |
Explanation: Ringworm, also known as dermatophytosis or tinea, is a fungal infection of the skin or scalp. |
291. |
Which of the following instrument is used to measure the blood-pressure? |
A. | Thermometer |
B. | ECG |
C. | Sphygmomanometer |
D. | Stethoscope |
Answer» C. Sphygmomanometer | |
Explanation: Sphygmomanometer is an instrument for measuring blood pressure. |
292. |
In which of the following class can we put Adrenaline? |
A. | Hormone |
B. | Enzyme |
C. | Protein |
D. | Fat |
Answer» A. Hormone | |
Explanation: Epinephrine, also known as adrenaline, is a hormone. It is normally produced by both the adrenal glands and certain neurons. |
293. |
The anti-malarial drug quinine is made from a plant. The plant is |
A. | Neem |
B. | Eucalyptus |
C. | Cinnamon |
D. | Cinchona |
Answer» D. Cinchona | |
Explanation: Quinine is an alkaloid, a naturally occurring chemical compound. How it works as a medicine is not entirely clear. Quinine was first isolated in 1820 from the bark of a cinchona tree. |
294. |
Tuberculosis is transmitted through – |
A. | Droplet transmission |
B. | Blood transfusion |
C. | Contaminated water |
D. | Sexual contact |
Answer» A. Droplet transmission | |
Explanation: The bacteria get released into the air by someone who already has the TB bacteria in their body. |
295. |
Which of the following is the largest living bird? |
A. | Eagle |
B. | Peacock |
C. | Ostrich |
D. | Kiwi |
Answer» C. Ostrich | |
Explanation: Ostriches are the largest living species of bird. Ostriches usually weigh 200 to 285 pounds, although some male ostriches have been recorded with weights of up to 340 pounds |
296. |
Which cell organelle is called the Master of the Cell? |
A. | Endoplasmic reticulum |
B. | Mitochondria |
C. | Nucleolus |
D. | Nucleus |
Answer» D. Nucleus | |
Explanation: The nucleus is often called the control center; master the brain of the cell. |
297. |
Generally insects respire through – |
A. | Skin |
B. | Gill |
C. | Lung |
D. | Spiracle |
Answer» D. Spiracle | |
Explanation: The function of spiracles is linked to respiration, helping oxygen to reach internal respiratory organs, such as lungs in whales and tracheae in insects. |
298. |
Which of the following foodcrops has the maximum content of proteins? |
A. | Cassava |
B. | Soyabean |
C. | Wheat |
D. | Maize |
Answer» B. Soyabean | |
Explanation: Soybean is a significant and cheap source of protein for animal feeds and many prepackaged meals. Soybeans produce significantly more protein per acre than most other uses of land. The beans contain significant amounts of phytic acid, alpha-linolenic acid, and isoflavones. Together, soybean oil and protein content account for about 60% of thy soybeans by weight (protein at 40% and oil at 20%). The remainder consists of 35% carbohydrate and about 5% ash. |
299. |
Where did the new form of pneumonia “SARS” start? |
A. | Canada |
B. | Singapore |
C. | China |
D. | Thailand |
Answer» C. China | |
Explanation: Severe acute respiratory syndrome (SARS) is a serious form of pneumonia. It is caused by a virus that was first identified in 2003. Infection with the SARS virus causes acute respiratory distress (severe breathing difficulty) and sometimes death. SARS was first seen in China. World Health Organization (WHO) physician Dr. Carlo Urbani identified SARS as a new disease in 2003. He diagnosed it in a 48-yearold businessman who had traveled from the Guangdong province of China, through Hong Kong, to Hanoi, Vietnam. The businessman and the doctor who first diagnosed SARS both died from the illness. |
300. |
If an insect that feeds on feces sits on the food you are going to eat, you are most likely to be infected by which disease? |
A. | Tuberculosis |
B. | Cholera |
C. | Typhoid |
D. | Hepatitis B |
Answer» C. Typhoid | |
Explanation: Typhoid is a bacterial infection that can lead to a high fever, diarrhea, and vomiting. It can be fatal. It is caused by the bacteria Salmonella typhi. |
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