Biology MCQs

1. The enzyme Nitrite reductase has which of the elements as its constituent ?
[A] Molybdenum
[B] Copper
[C] Iron
[D] Zinc

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2. Which among the following is not a carnivorous plant?
[A] Pitcher plant
[B] Venus Fly Trap
[C] waterwheel plant
[D] Marsh Mallow

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3. Which among the following is true attribute to Polar bear?
[A] Herbivore
[B] Omnivore
[C] Carnivore
[D] Marsupial

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4. Human Papilloma Virus is related to which of the following diseases?
[A] Prostate Cancer
[B] Cervical Cancer
[C] Lymphatic Filariasis
[D] Leukemia

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5. Which among the following nitrogenous wastes requires the least water for its excretion?
[A] Ammonia
[B] Urea
[C] Nitrites
[D] Uric Acid

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6. Which of the following diseases is caused by consumption of a wheat bread contaminated with a fungus called Claviceps purpurea?
[A] Lathyrism
[B] Ergotism
[C] Cinchonism
[D] Mushroom Poisoning

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7. Which plants grow well only in light?
[A] Heliophytes
[B] Xerophytes
[C] Sciophilous
[D] Epiphytes

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8. Guttation takes place due to the development of which of the following?
[A] Cells
[B] Transpiration
[C] Root pressure
[D] All of the above

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9. How Green plants in the sea are useful for the respiration of fish? (UPSC Prelims 1979).
[A] They give out oxygen
[B] They give out carbon dioxide
[C] The give out oxygen and carbon dioxide simultaneously
[D] They take oxygen and give out carbon dioxide

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10. Retina in the eyes acts as which of the following parts of the camera? (UPSC Prelims 1982)
[A] Lens of the camera
[B] Shutter of the camera
[C] Film of the camera
[D] None of these

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