McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) .
| 51. |
Which one of the following is a non- poisonous snake‘? : |
| A. | Cobra |
| B. | Dryophis |
| C. | Elapes |
| D. | Python |
| Answer» D. Python | |
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Explanation: Pythonidae, commonly known simply as pythons, from the Greek word python, is a family of nonvenomous snakes found in Africa, Asia and Australia. Among its members are some of the largest snakes in the world. Pythons are found in sub-Saharan Africa, Nepal, India, Burma, southern China, Southeast Asia and from the Philippines southeast through Indonesia to New Guinea and Australia. |
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| 52. |
The involvement of which one of the following is essential in the control of blood sugar? |
| A. | Adrenal |
| B. | Pancreas |
| C. | Parathyroid |
| D. | Spleen |
| Answer» B. Pancreas | |
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Explanation: Diabetes. Damage to insulin- producing cells in your pancreas from chronic pancreatitis can lead to diabetes, a disease that affects the way your body uses blood sugar. |
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| 53. |
Which drug is used as an Anti-Diabetic drug? |
| A. | Metformin |
| B. | Zolpidem |
| C. | Promethazine |
| D. | Hydralazine |
| Answer» A. Metformin | |
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Explanation: Metformin is an oral diabetes medicine that helps control blood sugar levels. It is used to improve blood sugar control in people with type 2 diabetes. |
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| 54. |
During dehydration what is the substance that is usually lost by the body? |
| A. | Sugar |
| B. | Sodium chloride |
| C. | Calcium phosphate |
| D. | Potassium chloride |
| Answer» B. Sodium chloride | |
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Explanation: Sodium chloride, also known as salt, common salt, table salt or halite, is an ionic compound with the formula NaC1, representing equal proportions of sodium and chloride. It is used as a carrier for other ingredients, dehydrating agent, enzyme inhibitor and tenderizer. |
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| 55. |
Which of the following diseases affects women easily than that of men? |
| A. | Heart attack |
| B. | Hepatitis |
| C. | Joint arthritis |
| D. | Arthritis |
| Answer» A. Heart attack | |
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Explanation: For women, heart disease symptoms may be subtle - but when a heart attack strikes, women are more likely to die than men. Women are also at twice the risk of death following open heart surgery, compared to men.Researchers say when men have heart disease it affects the larger blood vessels, but in women, the small blood vessels become diseased |
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| 56. |
Pituitary gland is located in — |
| A. | brain |
| B. | kidney |
| C. | liver |
| D. | intestine |
| Answer» A. brain | |
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Explanation: In vertebrate anatomy the pituitary gland is an endocrine gland about the size of a pea and weighing 0.5 grams (0.018 oz) in humans. It is a protrusion off the bottom of the hypothalamus at the base of the brain, and rests in a small, bony cavity covered by a Dural fold. The pituitary gland secretes nine hormones that regulate homeostasis. |
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| 57. |
Where is the Botanical Survey of India headquartered? |
| A. | Lucknow |
| B. | Darjeeling |
| C. | Kolkata |
| D. | Oottaccamund |
| Answer» C. Kolkata | |
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Explanation: The Botanical Survey of India (BSI) is the apex research organization under the Ministry of Environment and Forests, Govt. of India for carrying out taxonomic and floristic studies on wild plant resources of the country. It was established on 13th February, 1890 with the basic objective to explore the plant resources of the country and to identify the plants species with economic virtues. The Botanical Survey of India has the nine regional circles situated at different regions of the country. |
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| 58. |
Who amongst the following was awarded Nobel Prize for path breaking contributions to develop treatment agaThst Parkinson's disease? |
| A. | Arvid Carlsson |
| B. | Walter Kohn |
| C. | Robert B. Laughlin |
| D. | Fend Murad |
| Answer» A. Arvid Carlsson | |
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Explanation: In the 1950s, Arvid Carlsson demonstrated that dopamine was a neurotransmitter in the brain and not just a precursor fornorepinephrine, as had been previously believed. He developed a method for measuring the amount of dopamine in brain tissues and found that dopamine levels in the basal ganglia, a brain area important for movement, were particularly high. He then showed that giving animals the drug reserpine caused a decrease in dopamine levels and a loss of movement control. |
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| 59. |
What is the chromosome number in a human ovum? |
| A. | 24 |
| B. | 46 |
| C. | 48 |
| D. | None of these |
| Answer» B. 46 | |
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Explanation: Chromosomes are long Stringy aggregates of genes that carry heredity information. They are composed of DNA and proteins and are located within the nucleus of our cells. Chromosomes determine everything from hair color and eye color to sex. Whether you are a male or female depends on the presence or absence of certain chromosomes. Human cells contain 23 pairs of chromosomes for a total of 46. There are 22 pairs of autosomes and one pair of sex chromosomes. |
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| 60. |
The metal present in insulin is - |
| A. | Copper |
| B. | Iron |
| C. | Zine |
| D. | Magnesium |
| Answer» C. Zine | |
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Explanation: Insulin storage vesicles in humans and many other species contain high concentrations of Zn2+ and Ca2+ ions. Zinc plays an important role in insulin hexamerisation, which is closely related to someof the processes in insulin biosynthesis and storage. |
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| 61. |
Pregnant women usually become deficient in - |
| A. | Sodium and Calcium |
| B. | Iron and Sodium |
| C. | Calcium and Iron |
| D. | Magnesium and Iron |
| Answer» C. Calcium and Iron | |
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Explanation: When a woman becomes pregnant her body undergoes many physiological changes. Her hormone levels change not only to support the pregnancy but also to help redirect nutrients to support the nutritional demands of the developing baby. During pregnancy, a woman's blood volume increases 35 percent to 40 percent. Red blood cells contain the protein hemoglobin, which requires the mineral iron. Hemoglobin carries the oxygen to the cells throughout the mother and baby, making iron an important nutrient. Because the plasma volume increases by up to 50 percent but the red blood cells mass increases by only 15 percent to 20 percent, the risk of developing iron-deficiency anemia increases during pregnancy. |
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| 62. |
Which components of light are absorbed by chlorophyll? |
| A. | Violet and red |
| B. | Indigo and orange |
| C. | Blue and red |
| D. | Violet and yellow |
| Answer» A. Violet and red | |
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Explanation: Chlorophyll is a green pigment found in cyanobacteria and the chloroplasts of algae and plants. Chlorophyll is an extremely important biornolecule, critical in photosynthesis, which allows plants to absorb energy from light. Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. However, it is a poor absorber of green and near-green portions of the spectrum, hence the green color of chlorophyll-containing tissues. |
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| 63. |
Photosynthesis takes place inside plant cells in . |
| A. | Ribosomes |
| B. | Chloroplasts |
| C. | Nucleus |
| D. | Mitochondria |
| Answer» B. Chloroplasts | |
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Explanation: In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts. |
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| 64. |
Which among the following is used in the treatment of tubeculosis? |
| A. | Penicillin |
| B. | Aspirin |
| C. | Paracetamol |
| D. | Dettol |
| Answer» A. Penicillin | |
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Explanation: In the past 60 years, antibiotics have been critical in the fight against infectious disease caused by bacteria and other microbes. In 1946, penicillin became generally available for treatment of bacterial infections, especially those caused by staphylococci and streptococci. Initially, the antibiotic was effective against all sorts of infections caused by these two Gram- positive bacteria. Penicillin had unbelievable ability to kill these bacterial pathogens without harming the host that harbored them. |
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| 65. |
Which part of human body is first highly affected by nuclear radition’? |
| A. | Eyes |
| B. | Lungs |
| C. | Skin |
| D. | Bone Marrow |
| Answer» C. Skin | |
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Explanation: When molten nuclear fuel melts through a nuclear power plant's barriers, it causes a serious radiation leak. The radioactive materials will seep out to the surrounding environment, and into the air. Once in the upper atmosphere, high winds and jet streams couldcarry the dust to all places, and dropping radiation on everything, causing radiation poisoning. Radiation can penetrate deep inside the human body, and into the cells. Certain body parts are more specifically affected by exposure to different types of radiation sources. |
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| 66. |
Small pox is a deadly and highly contagious: |
| A. | Bacterial Disease |
| B. | Viral disease |
| C. | Fungal disease |
| D. | Vitamin deficiency disease |
| Answer» B. Viral disease | |
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Explanation: Smallpox is a contagious disease caused by the Variola virus, so it is a viral disease. |
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| 67. |
The enzymes sucrose acts on – |
| A. | sucrose only |
| B. | sucrose and starch |
| C. | all disaccharides |
| D. | any organic monomer |
| Answer» A. sucrose only | |
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Explanation: Sucrase enzymes are located on the brush border of the small intestine. The enzymes catalyze the hydrolysis of sucrose to its subunits fructose and glucose. |
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| 68. |
Which one of the following causes the Chikungunia disease? |
| A. | Bacteria |
| B. | Helminthic worm |
| C. | Protozoan |
| D. | Virus |
| Answer» D. Virus | |
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Explanation: Humans and other primates are the natural hosts for the chikungunya virus. The virus is spread to humans by the bite of an infected female Aedes species mosquito. |
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| 69. |
Which of the following brings back deoxygenated blood from different parts of human body to heart? |
| A. | Veins |
| B. | Arteries |
| C. | Nerves |
| D. | Lungs |
| Answer» A. Veins | |
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Explanation: 0 |
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| 70. |
Which drug is used for Pain Relief? |
| A. | Risedronate |
| B. | Tramadol |
| C. | Folic Acid |
| D. | Bupropion |
| Answer» B. Tramadol | |
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Explanation: Tramadol is similar to narcotic analgesics. It works in the brain to change how your body feels and responds to pain. |
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| 71. |
The National tree of India – |
| A. | The coconut |
| B. | The sandalwood |
| C. | The banyan |
| D. | the neem |
| Answer» C. The banyan | |
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Explanation: Indian banyan (Ficus bengalensis) is the national tree of India. The tree is also known as Kalpavriksha, which mearns 'wish fulfilling tree'. |
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| 72. |
Cell or tissue death within a living body is called as - |
| A. | Neutrophilia |
| B. | Neplarosis |
| C. | Necrosis |
| D. | Neoplasia |
| Answer» C. Necrosis | |
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Explanation: Necrosis is death of body tissue. It occurs when there is not enough blood flowing to the tissue, whether from injury, radiation, or chemicals. Necrosis is riot reversible. Whensubstantial areas of tissue die due to a lack of blood supply, the condition is called gangrene. Necrosis is caused by factors external to the cell or tissue, such as infection, toxins, or trauma that result unregulated digestion of cell components. |
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| 73. |
Insufficient blood supply in human body is referred as – |
| A. | Ischemia |
| B. | Hyperemia |
| C. | Hemostasia |
| D. | Hemorrhage |
| Answer» A. Ischemia | |
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Explanation: In medicine, ischemia denotes a restriction or thinning or to make or grow thin/lean, haema blood) is a restriction in blood supply to tissues, causing a shortage of oxygen and glucose needed for cellular metabolism (to keep tissue alive). Ischernia is generally caused by problems with blood vessels, with resultant damage to or dysfunction of tissue. It also means local anemia in a given part of a body sometimes resulting from congestion (such as vasoconstriction, thrombosis or embolism). |
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| 74. |
The only snake that builds a nest is: |
| A. | Chain viper |
| B. | King Cobra |
| C. | Coconut |
| D. | Potato |
| Answer» B. King Cobra | |
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Explanation: The king cobra (Ophiophagus hannah), also known as the hamadryad, is a venomous snake species in the family Elapidae, endemic to forests from India through Southeast Asia. |
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| 75. |
Humerus bone is situated in |
| A. | Thigh |
| B. | Upper arm |
| C. | Knee |
| D. | Fore arm |
| Answer» A. Thigh | |
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Explanation: The humerus is a long bone in the arm or forelimb that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna. |
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| 76. |
The pH of human blood is - |
| A. | 7.2 |
| B. | 7.8 |
| C. | 6.6 |
| D. | 7.4 |
| Answer» D. 7.4 | |
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Explanation: Different fluids in the human body generally have a delicate range of acid- alkaline balance they maintain for optimal functioning. Human blood has a normal pH of about 7.41. The pH of urine has a wider range. Normal ranges for urine pH are from 4.5 to 8. When the pH levels of blood or other key bodily fluids fall out of optimal pH range due to adverse metabolic or respiratory conditions, the human body goes through a variety of adjustments to try to correct the acid or alkaline imbalance. If the body is too alkaline, a condition called alkalosis results. Conversely, an overly acid condition results in acidosis. |
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| 77. |
Which amongst the following is largest endocrine gland in the body? |
| A. | Thyroid |
| B. | Parathyroid |
| C. | Adrenal |
| D. | Pituitary |
| Answer» A. Thyroid | |
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Explanation: Endocrine glands are glands of the endocrine system that, secrete their products, hormones, directly into the blood rather than through a duct. The main endocrine glands include the pituitary gland, pancreas, ovaries, testes, thyroid gland, and adrenal glands. The thyroid gland in vertebrate anatomy, is one of the largest endocrine glands. The thyroid gland is found in the neck, below the thyroid cartilage (which forms the laryngeal prominence, or "Adam's apple"). |
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| 78. |
Insulin is a kind of . |
| A. | hormone |
| B. | protein |
| C. | enzyme |
| D. | vitamin |
| Answer» A. hormone | |
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Explanation: Insulin is a hormone made by the pancreas that allows our body to use sugar (glucose) from carbohydrates in the food that we eat for energy or to store glucose for future use Insulin helps keeps your blood sugar level from getting too hig (hyperglycemia) or too low hypoglycemia. |
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| 79. |
The charcoal used to decolorize raw sugar is |
| A. | Animal charcoal |
| B. | Sugar charcoal |
| C. | Cocoanut charcoal |
| D. | Wood charcoal |
| Answer» D. Wood charcoal | |
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Explanation: Wood charcoal is porous and can absorb liquids and gases on its porous surface. Therefore, it is used in water filters, gas masks and ant gastric tablets, capsule or powder for people suffering from indigestion. |
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| 80. |
The element which is rich in most leafy vegetables is |
| A. | Phosphorous |
| B. | Zinc |
| C. | Iron |
| D. | Calcium |
| Answer» C. Iron | |
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Explanation: Green leafy vegetables are rich in iron as well as calcium. For example, Spinach is a dark, leafy green vegetable which is high in iron. One cup of cooked spinach provides one with 6.5 mg of iron which is an essential mineral needed by the human body and is a component of many proteins, including hemoglobin, which helps red blood cells deliver oxygen to all areas of the body |
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| 81. |
Polio is caused by - |
| A. | Bacterium |
| B. | Fungus |
| C. | Virus |
| D. | Insect |
| Answer» C. Virus | |
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Explanation: Poliomyelitis , often called polio or infantile paralysis, is an acute, viral, infectious disease spread from person to person, primarily via the fecal-oral route. |
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| 82. |
The functions of pacemaker is - |
| A. | Regulation of urine formation |
| B. | Regulation of digestion |
| C. | Initiation of heart beat |
| D. | Initiation of respiration |
| Answer» C. Initiation of heart beat | |
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Explanation: A pacemaker is a medical device that uses electrical impulses, delivered by electrodes contacting the heart muscles, to initiate and regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's native pacemaker is not fast enough, or there is a block in the heart's electrical conduction system. |
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| 83. |
The best method of disposal of garbage is - |
| A. | Vermiculture |
| B. | Incineration |
| C. | Land filling |
| D. | Burning |
| Answer» C. Land filling | |
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Explanation: Landfill is the most common and the oldest method for waste disposal management, incineration is the second largest method for waste disposal management in most of the countries around the world. |
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| 84. |
Transpiration is mainly effective during . |
| A. | Day |
| B. | Early evening |
| C. | Just after sunset |
| D. | Night |
| Answer» D. Night | |
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Explanation: While the effect of root pressure in transport of water is more important at night, Transpiration is important during the day when the stomata are open. Thus, transpiration pull becomes the major driving force in the movement of water in the xylem during daytime. |
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| 85. |
The smallest flowering plant is - |
| A. | Wolffia |
| B. | Lemma |
| C. | Azolla |
| D. | Ficus |
| Answer» A. Wolffia | |
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Explanation: Wolffia is a genus of 9 to 11 species which include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Wolffia species are free-floating thalli, green or yellow- green, and without roots. The flower is produced in a depression on the top surface of the plant body. It has one stamen and one pistil. Individuals often float together in pairs or form floating mats with related plants, such as Lemna and Spirodela species. |
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| 86. |
Which amongst the following is the largest mammal? |
| A. | Elephant |
| B. | Whale |
| C. | Dinosaur |
| D. | Rhinoceros |
| Answer» B. Whale | |
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Explanation: Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule theoceans at up to 100 feet (30 meters) long and upwards of 200 tons (181 metric tons). Their tongues alone can weigh as much as an elephant, their hearts, as much as an automobile. Blue whales reach these mind-boggling dimensions on a diet composed nearly exclusively of tiny shrimplike animals called krill. During certain times of the year, a single adult blue whale consumes about 4 tons (3.6 metric tons) of krill a day. |
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| 87. |
Which part becomes modified as the tusk of elephant? |
| A. | Canine |
| B. | Premolar |
| C. | Second incisor |
| D. | Molar |
| Answer» C. Second incisor | |
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Explanation: Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses, or, in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males' are larger. |
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| 88. |
One of these vitamins is called erythrocyte maturation factor - |
| A. | A |
| B. | C |
| C. | K |
| D. | B-12 |
| Answer» D. B-12 | |
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Explanation: Essential for the maturation of red blood cells are Vitamin B12 (cobalamin) and Vitamin B9 (Folic acid). |
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| 89. |
Which among the following is not a connective tissue? |
| A. | Blood |
| B. | Bone |
| C. | Skin |
| D. | Cartilage |
| Answer» C. Skin | |
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Explanation: Skin is composed of a layer of epithelial tissue (epidermis) that is supported by a layer of connective tissue. It protects the internal structures of the body from damage and dehydration. |
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| 90. |
Deep fried food materials are carcinogenic because they are rich in - |
| A. | Fats |
| B. | Hydrocarbons |
| C. | Cooking oil |
| D. | Nicotine |
| Answer» B. Hydrocarbons | |
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Explanation: If foods are overheated or burnt, a group of carcinogenic substances called polycyclic aromatic hydrocarbons (PAHs) are produced. PAHs represent a very large group of compounds. Chemically, they consist of fused aromatic rings made up of carbon and hydrogen atoms. After being ingested, PAHs can be absorbed in the intestine and distributed to other organs through blood circulation. |
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| 91. |
The toxicity of which of the following heavy metals leads to liver cirrbosis? |
| A. | Copper |
| B. | Lead |
| C. | Mercury |
| D. | Zinc |
| Answer» A. Copper | |
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Explanation: Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrosis, scar tissue and regenerative nodules (lumps that occur as a result of a process in which damaged tissue is regenerated), leading to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease. Some inherited diseases that can cause cirrhosis include Wilson's disease (which causes an accumulation of copper in the body). |
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| 92. |
What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver? |
| A. | left hepatic artery |
| B. | Hepatic vein |
| C. | Right hepatic artery |
| D. | Hepatic portal vein |
| Answer» D. Hepatic portal vein | |
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Explanation: The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. |
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| 93. |
'Ringworm' is a disease caused by - |
| A. | Fungi |
| B. | Bacteria |
| C. | Virus |
| D. | Flies |
| Answer» A. Fungi | |
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Explanation: Ringworm, also known as dermatophytosis or tinea, is a fungal infection of the skin or scalp. |
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| 94. |
Which one of the following diseases is caused by virus? |
| A. | Tuberculosis |
| B. | Typhoid |
| C. | Influenza |
| D. | Diphtheria |
| Answer» C. Influenza | |
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Explanation: Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe. |
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| 95. |
In which of the following groups, animals bear no teeth? |
| A. | Peacock, Ostrich, Tortoise |
| B. | Owl, Loris, Crow |
| C. | Alligator, Turtle Tortoise |
| D. | Turtle, Kiwi, Cow |
| Answer» A. Peacock, Ostrich, Tortoise | |
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Explanation: The sloth, which is not a bear, has no front teeth. Other mammals are the armadillo and anteater (Order Xenarthra) and baleen whales. Among reptiles the turtles and tortoise. Among amphibians most toads are toothless. Modern birds have a toothless beak or bill. Peacock do not have teeth. Within the fish, all the Cyprinids, some catfish, paddelfish. |
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| 96. |
Red rot is a disease caused to which of the following plant? |
| A. | Paddy |
| B. | Sugarcane |
| C. | Mustard |
| D. | Wheat |
| Answer» B. Sugarcane | |
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Explanation: Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis). |
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| 97. |
Enzymes are absent in – |
| A. | fungi |
| B. | bacteria |
| C. | viruses |
| D. | algae |
| Answer» C. viruses | |
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Explanation: 0 |
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| 98. |
Olive Ridley is a famous - |
| A. | cricketer |
| B. | turtle species |
| C. | grass type vegetation |
| D. | Another name for olive tree |
| Answer» B. turtle species | |
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Explanation: The Olive Ridley is considered the most abundant sea turtle in the world, with an estimated 800,000 nesting females annually. The Olive Ridley gets its name from the olive coloration of its heart-shaped top shell (carapace). The Olive Ridley has one of the most extraordinary nesting habits in the natural world. Large groups of turtles gather off shore of nesting beaches. Then, all at once, vast numbers of turtles come ashore and nest in what is known as an "arribada". During these arribadas, hundreds to thousands of females come ashore to lay their eggs. |
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| 99. |
The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of - |
| A. | 45-50 decibels |
| B. | 200-250 decibels |
| C. | 5-10 decibels |
| D. | 2000-2500 decibels |
| Answer» C. 5-10 decibels | |
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Explanation: Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible range of frequencies is usually said to be 20 Hz (cycles per second) to 20 kHz (20,000 Hz), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal. Specifically, humans have a maximum aural range that begins as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults. |
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| 100. |
The largest cell in the human body is : |
| A. | Nerve cell |
| B. | Muscle cell |
| C. | Liver cell |
| D. | Kidney cell |
| Answer» A. Nerve cell | |
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Explanation: The ovum is the largest cell in the human body, typically visible to the naked eye without the aid of a microscope or other magnification device. The smallest is the male sperm cell, it is one-tenth of the diameter of a human hair. Now, it is true that neurons can have very long extensions or axons, the axon isn't a cell, but a peripheral extension. The actual neuron is tiny compared to the egg cell. |
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