McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) .
| 951. |
Which one of the following is a condition of delayed blood clotting? |
| A. | Heaemorrhage |
| B. | Hematuria |
| C. | Haemophilia |
| D. | Anaemia |
| Answer» C. Haemophilia | |
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Explanation: Haemophilia is a group of hereditary genetic disorders that impair the body's ability to control blood clotting or coagulation, which is used to stop bleeding when a blood vessel is broken. |
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| 952. |
Which of the following types of light are strongly absorbed by plants? |
| A. | Violet and orange |
| B. | Blue and red |
| C. | Indigo and yellow |
| D. | Yellow and violet |
| Answer» B. Blue and red | |
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Explanation: 0 |
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| 953. |
The vitamin necessary for coagulation of blood is – |
| A. | Vitamin B |
| B. | Vitamin C |
| C. | Vitamin K |
| D. | Vitamin E |
| Answer» C. Vitamin K | |
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Explanation: Vitamin K is a group of structurally similar, fat-soluble vitamins that are needed for the posttranslational modification ofcertain proteins required for blood coagulation and in metabolic pathways in bone and other tissue. They are 2-methyl-1,4-naphthoquinone (3-) derivatives. This group of vitamins includes two natural vitamers: vitamin K1 (found in highest amounts in green leafy vegetables) and vitamin K2 (form used by enzymes in animals). |
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| 954. |
The first effective vaccine against polio was prepared by : |
| A. | J.H. Gibbon |
| B. | Jonas E. Salk |
| C. | Robert Edwards |
| D. | James Simpson |
| Answer» B. Jonas E. Salk | |
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Explanation: Jonas Edward Salk was an American medical researcher and virologist, best known for his discovery and development of the first polio vaccine. On April 12, 1955, Dr. Thomas Francis, Jr., of the University of Michigan, the monitor of the test results, "declared the vaccine to be safe and effective." |
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| 955. |
In mammals, an important role of excretion is played by – |
| A. | Large intestine |
| B. | Kidneye |
| C. | Lungs |
| D. | Liver |
| Answer» B. Kidneye | |
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Explanation: The Kidneys are bean-shaped organs that serve several excretory roles apart from the essential regulatory roles in mammals. |
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| 956. |
Milk of magnesia is a suspension of – |
| A. | magnesium sulphate |
| B. | magnesium carbonate |
| C. | magnesium hydroxide |
| D. | magnesium Chloride |
| Answer» C. magnesium hydroxide | |
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Explanation: Milk of magnesia is a suspension of magnesium hydroxide due to its milk-like appearance. |
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| 957. |
Which virus from the following combinations is contagious for human beings? |
| A. | H5N1 |
| B. | H1N5 |
| C. | H2N3 |
| D. | H4N2 |
| Answer» A. H5N1 | |
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Explanation: A bird-adapted strain of H5N1 , called HPAI A(H5N1) for "highly pathogenic avian influenza virus of type A of subtype H5N1", is the causative agent of H5N1 flu, commonly known as "avian influenza" or "bird flu". It is enzootic in many bird populations, especially in Southeast Asia. One strain of HPAI A(H5N1) is spreading globally after first appearing in Asia. |
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| 958. |
Which of the following is a deficiency disease? |
| A. | Asthma |
| B. | Jaundice |
| C. | Scurvy |
| D. | Cancer |
| Answer» C. Scurvy | |
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Explanation: Scurvy is caused by the deficiency of Vitamin C. Vitamin. This causes muscle weakness, joint pain and problems with wound healing. It can also lead to loose teeth, bleeding and swollen gums, easily bruised skin and fatigue, and sometimes depression. |
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| 959. |
Potassium metabisulphate is used as a food preservative for – |
| A. | Squash |
| B. | Tomato Ketchup |
| C. | Fruit Juices |
| D. | Pickles |
| Answer» C. Fruit Juices | |
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Explanation: The potassium meta-bisuifite preservative is an additive that is commonly used for preserving all kinds of vegetables and fruit and, thus, increasing their longevity. It findsits application in fruit juices by increasing their longevity. It is also added to dried apples and dehydrated potatoes to preserve their edibility. |
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| 960. |
Which of these joints is a Hinge joint? |
| A. | Hip |
| B. | Elbow |
| C. | Shoulder |
| D. | Wrist |
| Answer» B. Elbow | |
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Explanation: A hinge joint allows movement in a certain spot to take place. This joint is similar to the opening and closing of a door. Some examples of hinge joints are the elbow, knee, ankle and joints between the fingers. Hinge joints allow the body parts to bend and straighten. Hip and shoulders are synovial ball and socket joints. |
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| 961. |
The oil which causes dropsy is – |
| A. | Groundnut oil |
| B. | Coconut oil |
| C. | Sunflower oil |
| D. | Argemone oil |
| Answer» D. Argemone oil | |
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Explanation: Epidemic dropsy is a form of edema of extremities due to intoxication with Argemon.e Mexicana seed oil. Sanguinarine and dihydrosanguinarine are two major toxic alkaloids of argemone oil, which cause widespread capillary dilatation, proliferation and increased capillary permeability. |
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| 962. |
Universal donors are people with the blood group – |
| A. | A |
| B. | B |
| C. | O |
| D. | AB |
| Answer» C. O | |
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Explanation: Type 0-negative blood does not have any antigens. It is called the "universal donor" type because it is compatible with any blood type. Type AB-positive blood is called the"universal recipient" type because a person who has it can receive blood of any type. |
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| 963. |
Pulses are a good source of – |
| A. | Carbohydrates |
| B. | Vitamins |
| C. | Proteins |
| D. | Fats |
| Answer» C. Proteins | |
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Explanation: Pulses are 20 to 25% protein by weight, which is double the protein content of wheat and three times that of rice. While pulses are generally high in protein, and the digestibility of that protein is also high, they are often relatively poor in the essential amino acid methionine. |
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| 964. |
High level of uric acid in the blood causes – |
| A. | Arthritis |
| B. | Gout |
| C. | Rheumatism |
| D. | Asthma |
| Answer» B. Gout | |
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Explanation: High levels of uric acid in the blood can cause solid crystals to form within joints. This causes a painful condition called gout. If gout remains untreated, these uric acid crystals can build up in the joints and nearby tissues, forming hard lumpy deposits called tophi. |
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| 965. |
The function of Haemoglobin is to : |
| A. | provide amino acids |
| B. | carry oxygen |
| C. | provide enzymes |
| D. | help in excretion |
| Answer» B. carry oxygen | |
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Explanation: Haemoglobin is an iron- containing protein in red blood cells. Hemoglobin in the blood carries oxygen from the respiratory organs (lungs or gills) to the rest of the body (i.e. the tissues) where it releases the oxygen to burn nutrients to provide energy topower the functions of the organism, and collects the resultant carbon dioxide to bring it back to the respiratory organs to be dispensed from the organism. |
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| 966. |
When nitrogenous waste accumulates in the blood which organ is not functioning? |
| A. | Liver |
| B. | Lungs |
| C. | Kidneys |
| D. | Heart |
| Answer» C. Kidneys | |
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Explanation: Acute kidney failure (AKF) occurs when there is a sudden reduction in kidney function that results in nitrogenous wastes accumulating in the blood (azotemia). The accumulation of nitrogenous wastes is known as uremia. If untreated, uremia can cause coma and eventually death. |
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| 967. |
Which one of the following food-stuffs of the same quantity possesses the highest calorific value? |
| A. | Butter |
| B. | Apple |
| C. | Cheese |
| D. | Sugar |
| Answer» A. Butter | |
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Explanation: Calorific value refers to calories or thermal units contained in one unit of a substance and released when the substance is burned. Fats have higher calorific value than other food items. The calorific value of different food items (per 100 gram) are: Butter: 740; Cheese: 310; Sugar: 405; and Apple: 45. |
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| 968. |
EEG is a technique to record the activity of – |
| A. | heart |
| B. | lungs |
| C. | brain |
| D. | muscles |
| Answer» C. brain | |
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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. |
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| 969. |
Lactose is present in – |
| A. | grapes |
| B. | milk |
| C. | lime |
| D. | vinegar |
| Answer» B. milk | |
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Explanation: 0 |
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| 970. |
The colour of cow's milk is slightly yellow due to the presence of – |
| A. | xanthophyll |
| B. | riboflavin |
| C. | ribulose |
| D. | carotin |
| Answer» D. carotin | |
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Explanation: Carotene mostly affects the colour of fat. Since milk is comprised of around 3.5% milk fat, a dairy cow that is grass-fed tends to produce yellow milk, over a dairy cow that is not grass-fed and fed primarily a mix of hay, silage and grain. |
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| 971. |
Which one of the following is a hereditary disease? |
| A. | Haemophilia |
| B. | Myopia |
| C. | Anaemia |
| D. | Leukemia |
| Answer» A. Haemophilia | |
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Explanation: Hemophilia is a group of hereditary genetic disorders that impair the body's ability to control blood clotting or coagulation, which is used to stop bleeding when a blood vessel is broken. It has been associated with royal families due to inbreeding, and is sometimes called the 'Royal Disease.' |
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| 972. |
What is the Normal Blood Volume in human adult? |
| A. | One litre |
| B. | Three litres |
| C. | Five litres |
| D. | Seven litres |
| Answer» C. Five litres | |
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Explanation: The average adult has a blood volume of roughly 5 liters, which is composed of plasma and several kinds of cells. By volume, the red blood cells constitute about 45% of whole blood, the plasma about 54.3%, and white cells about 0.7%. |
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| 973. |
Which of the following has no blood, but respires? |
| A. | Fish |
| B. | Earthworm |
| C. | Hydra |
| D. | Cockroach |
| Answer» C. Hydra | |
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Explanation: 0 |
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| 974. |
Organisms that generate energy using light are known as - |
| A. | Chaemolithotrophs |
| B. | Oligotrophs |
| C. | Bacteria |
| D. | Photoautotrophs |
| Answer» D. Photoautotrophs | |
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Explanation: 0 |
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| 975. |
The fasting blood glucose level in adults in mg/100 ml is – |
| A. | 200 |
| B. | 160 |
| C. | 100 |
| D. | 60 |
| Answer» C. 100 | |
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Explanation: The normal range of concentration of fasting blood sugar is 80 to 120 mg/ml; in the testing of true blood sugar, the normal range of concentration is 70 to 100 mg/ml. So normal glucose levels fall between 70 and 150 mg. Higher levels may indicate diseases such as diabetes mellitus. |
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| 976. |
Entomology is the study of – |
| A. | Birds |
| B. | Insects |
| C. | Fossils |
| D. | Fungi |
| Answer» B. Insects | |
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Explanation: Entomology is the scientific study of insects, a branch of arthropodolo„ (.w. which in turn is a branch of biology. It is derived from Lhe Greek word `entomos' which means "that which is cut in pieces or engraved/ segmented", hence "insect". |
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| 977. |
Exobiology is a science that deals with |
| A. | extinct forms |
| B. | life in other planets |
| C. | life in the outer space |
| D. | life in marine habitat |
| Answer» C. life in the outer space | |
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Explanation: Exobiology is the branch of biology that deals with the search for extraterrestrial life and the effects of extraterrestrial surroundings or outer space on living organisms. |
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| 978. |
Which of the following fuels causes minimum environmental pollution? |
| A. | Diesel |
| B. | Kerosene |
| C. | Hydrogen |
| D. | Coal |
| Answer» C. Hydrogen | |
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Explanation: 0 |
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| 979. |
Name the organ where the embryo develops - |
| A. | Uterus |
| B. | Fallopian tube |
| C. | Ureter |
| D. | Cervix |
| Answer» C. Ureter | |
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Explanation: In a placental mammal, an ovam is fertilized in a fallopian tube through which it travels into the uterus. |
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| 980. |
Which of the following organelle is responsible for synthesizing of proteins in the cell? |
| A. | Golgi apparatus |
| B. | Ribosome |
| C. | Lysosome |
| D. | Nucleus |
| Answer» B. Ribosome | |
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Explanation: The Ribosome, a complex molecule made of ribosomal RNA molecules, is responsible for protein synthesis in the cells. |
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| 981. |
Plants get water through the roots because of — |
| A. | elasticity |
| B. | capillarity |
| C. | viscosity |
| D. | photosynthesis |
| Answer» B. capillarity | |
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Explanation: Plants absorb water from their root hairs on the root via osmosis. It is then transported to other parts of the plant (through the network of xylem vessels) through a combination of capillary action and "transiprational pull." Water moves through the plant by means of capillary action. |
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| 982. |
The central control of respiratory activity in human body is exercised by – |
| A. | cerebrum |
| B. | cerebellum |
| C. | medulla oblongata |
| D. | hypothalamus |
| Answer» C. medulla oblongata | |
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Explanation: The medulla oblongata is a portion of the hindbrain that controls autonomic functions such as breathing, digestion, heart and blood vessel function, swallowing and sneezing. Motor and sensory neurons from the midbrain and forebrain travel through the medulla. As a part of the brainstem, the medulla oblongata helps in the transferring of messages between various parts of the brain and the spinal cord. |
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| 983. |
Examples of vegetative propagation are |
| A. | rhizome |
| B. | offset |
| C. | tuber |
| D. | All of these |
| Answer» D. All of these | |
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Explanation: Rhizome of ginger, tuber of potato offset of water hyacinth are the modes of vegetative reproduction. |
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| 984. |
The biological decomposition of organic substances in wastes under controlled conditions known as - |
| A. | composting |
| B. | incineration |
| C. | sanitary landfill |
| D. | pyrolysis |
| Answer» A. composting | |
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Explanation: 0 |
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| 985. |
Human bone does not contain – |
| A. | calcium |
| B. | carbon |
| C. | oxygen |
| D. | phosphorous |
| Answer» C. oxygen | |
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Explanation: Human bone contains calcium, carbon, phosphorous. Bones are made of connective tissue reinforced with calcium and specialized bone cells. Most bones also contain bone marrow, where blood cells are made. |
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| 986. |
Birds usually have a single – |
| A. | Kidney |
| B. | Lung |
| C. | Testis |
| D. | Ovary |
| Answer» D. Ovary | |
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Explanation: Female birds in most families have only one functional ovary (the left one), connected to an oviduct — although two ovaries are present in the embryonic stage of each female bird. |
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| 987. |
Alfalfa is the name of a kind of – |
| A. | Forest |
| B. | Crop |
| C. | Grass |
| D. | None of these |
| Answer» B. Crop | |
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Explanation: Alfalfa is a small seeded crop, and has a slowly-growing seedling, but after several months of establishment, forms a tough 'crown' at the top of the root system. This crown contains many shoot buds that enables alfalfa to re-grow many times after being grazed or harvested. Alfalfa is widely grown throughout the world as forage for cattle. |
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| 988. |
The protein present in the finger nail is |
| A. | Actin |
| B. | Myosin |
| C. | Globin |
| D. | Keratin |
| Answer» D. Keratin | |
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Explanation: Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves. |
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| 989. |
'Corms & seeds are seeds with - |
| A. | Long hairs |
| B. | Wings |
| C. | Bristles |
| D. | Hooks |
| Answer» A. Long hairs | |
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Explanation: The word ‘comose' means taily in Latin. It refers to certain seeds (such as cotton) having a tuft or tufts of hair. The seeds of plants like Calotropis, Gossypium, etc, possess a large number of hairs which enable them to float in air. Such seeds are described as comose. |
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| 990. |
The sugar present in DNA is – |
| A. | Pentose |
| B. | Xylulose |
| C. | Hexose |
| D. | Heptulose |
| Answer» A. Pentose | |
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Explanation: The sugar present in DNA is 2- deoxyribose, which is a pentose |
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| 991. |
Which of the following weeds has been found effective in checking water pollution caused by industrial affluents? |
| A. | Water hyacinth |
| B. | Elephant Grass |
| C. | Parthenium |
| D. | Both (2) and (3) |
| Answer» A. Water hyacinth | |
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Explanation: Plants that are resistant to crude oil toxicity such as black poplar and willows, as well as miscanthus grass (elephant grass) have been found to be effective in the remediation of oil polluted soil. Bioadsorbents like Moringo oliefera seeds and Parthenium hysterophorus plants are effective for the removal of industrial p011utants in water. |
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| 992. |
Itai-itai disease is due to poisoning caused by – |
| A. | Mercury |
| B. | Arsenic |
| C. | Cadmium |
| D. | Asbestos |
| Answer» C. Cadmium | |
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Explanation: Itai-itai disease was the documented case of mass cadmium poisoning inToyama Prefecture, Japan, starting around 1912. The cadmium poisoning caused softening of the bones and kidney failure. |
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| 993. |
Two richest known sources of edible protein are – |
| A. | Meat and eggs |
| B. | Some algae and other micro-organisms |
| C. | Soyabean and groundnut |
| D. | Milk and leafy vegetables |
| Answer» A. Meat and eggs | |
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Explanation: Meat, fish and eggs are the richest sources of protein. An ounce of meat or fish has approximately 7 grams of protein. A large ead contains 6 grams protein. |
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| 994. |
The blood vessel carrying blood from the lungs to the heart is – |
| A. | Hepatic artery |
| B. | Pulmonary artery |
| C. | Pulmonary vein |
| D. | Renal artery |
| Answer» C. Pulmonary vein | |
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Explanation: The pulmonary veins are large blood vessels that carry oxygenated blood from the lungs to the left atrium of the heart. In humans there are four pulmonary veins, two from each lung. They carry oxygenated blood, which is unusual since almost all other veins carry deoxygenated blood. |
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| 995. |
In onion food is stored in |
| A. | aerial stem |
| B. | root |
| C. | scale leaves |
| D. | bud |
| Answer» C. scale leaves | |
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Explanation: In onions, the bulbs consist of very short stems with closely packed leaves arranged in concentric circles round the stem. These leaves are swollen with stored food. The inner leaves are fleshy while the outer ones are dry. This is called as tunicated bulb since 'theconcentric leaf bases form a complete covering or tunic. |
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| 996. |
In human body, cartilage is found in – |
| A. | tognue |
| B. | nose |
| C. | chin |
| D. | nail |
| Answer» B. nose | |
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Explanation: Cartilage is a flexible connective tissue found in many areas in the bodies of humans and other animals, including the joints between bones, the rib cage, the ear, the nose, the bronchial tubes and the intervertebral discs. It is not as hard and rigid as bone but is stiffer and less flexible than muscle. |
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| 997. |
Sickle-cell anemia is a disease caused due to the abnormality in – |
| A. | white blood cells |
| B. | red blood cells |
| C. | thrombocytes |
| D. | blood plasma composition |
| Answer» B. red blood cells | |
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Explanation: Sickle cell anemia (sickle cell disease) is a disorder of the blood caused by an inherited abnormal hemoglobin (the oxygen- carrying protein within the red blood cells). |
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| 998. |
Jaundice is caused due to the infection of – |
| A. | brain |
| B. | liver |
| C. | kidney |
| D. | spleen |
| Answer» B. liver | |
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Explanation: Jaundice is a yellow discoloration of the skin, mucous membranes, and the whites of the eyes caused by increased amounts of bilirubin in the blood. Normally, the liver metabolizes and excretes the bilirubin in the form of bile. However, if there is a disruption in this normal metabolism and/or production of bilirubin, jaundice may result. |
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| 999. |
Haemophilia is – |
| A. | an organic disorder |
| B. | a metabolic disorder |
| C. | a genetic disorder |
| D. | a hormonal disorder |
| Answer» C. a genetic disorder | |
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Explanation: Haemophilia is a group of hereditary genetic disorders that impair the body's ability to control blood clotting or coagulation, which is used to stop bleeding when a blood vessel is broken. Haemophilia A (clotting factor VIII deficiency) is the most common form of the disorder, present in about 1 in 5,00010,000 male births. |
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| 1000. |
The blood vessel supplying blood to the kidney is – |
| A. | the renal artery |
| B. | the hepatic artery |
| C. | the pulmonary artery |
| D. | the carotid artery |
| Answer» A. the renal artery | |
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Explanation: The renal arteries normally arise off the side of the abdominal aorta, immediately below the superior mesenteric artery, and supply the kidneys with blood. Each is directed across the the diaphragm, so as to form nearly a right angle with the aorta. |
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