Biology MCQs

1. The cork cells are impervious to water. Which among the following is responsible to give this quality to Cork?
[A] Cellulose
[B] Cutin
[C] Suberin
[D] Glucose

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2. Which among the following is involved in movement of Muscles?
[A] Myoglobin
[B] Myosin
[C] Mucin
[D] None of the above

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3. Which among the following is called antisterility vitamin ?
[A] Vitamin A
[B] Vitamin D
[C] Vitamin E
[D] Vitamin K

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4. Which among the following virus is also called as “Hit & Hide” Virus?
[A] RSV Virus (respiratory syncytial virus )
[B] Dengue virus
[C] Influenza virus
[D] HIV virus

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5. Anesthesia which allows patients to undergo surgery without the distress and pain they would otherwise experience, has been practiced by man since ancient times. Which among the following plant is the most ancient source of anesthesia preparations?
[A] Opium (poppy)
[B] Cannabis
[C] Datura
[D] Coca

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6. How does calcium carbide ripen mangoes?
[A] It reacts with moisture and releases Ethylene
[B] It reacts with moisture and releases Acetaldehyde, which in turn releases ethylene
[C] It reacts with starch and releases Acetylene
[D] It reacts with moisture and releases Ethyne

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7. Which among the following is not a ‘heriditary’ disease?
[A] Thalessemia
[B] Colour-Blindness
[C] Haemophilia
[D] Leukemia

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8. Which process enables the Peepal tree to release oxygen at night?
[A] Crassulacean Acid Metabolism
[B] C3 Photosynthesis
[C] C4 Photosynthesis
[D] Carbon cycle re-balancing

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9. Which among the following is the most primitive life form?
[A] Bacteria
[B] Protozoa
[C] Virus
[D] Blue-green algae

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10. Xerophytes can tolerate and stand against _?
[A] High temperature
[B] Severe Cold
[C] High humidity
[D] Drought Conditions

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