Biology MCQs

11. Which among the following is the name given to the ductless and secretory glands in the human body?
[A] Endocrine glands
[B] Exocrine glands
[C] Salivary glands
[D] None of the above

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12. Consider the following conditions of sick human body
1. Swollen lymph nodes
2. Sweating at night
3. Loss of memory
4. Loss of weight
Which of these are the symptoms of AIDS?
[A] 1 and 2
[B] 2, 3 and 4
[C] 1, 2 and 3
[D] 1, 2, 3 and 4

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13. Which vitamin deficiency leads to Scurvy?
[A] Vitamin B3
[B] Vitamin C
[C] Vitamin K
[D] Vitamin B9

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14. Which branch of biology is known for the study of plant fossils?
[A] Paleobotany
[B] Morphology
[C] Lichenology
[D] Agronomy

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15. Branch of science dealing with the medicinal plants is known as__?
[A] Pharmacognosy
[B] Pharmacology
[C] Phenology
[D] None of these

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16. Who was awarded the Nobel Prize in Medicine for the discovery of Human Immunodeficiency Virus?
[A] Françoise Barré-Sinoussi
[B] Luc Montagnier
[C] Both 1 & 2
[D] None of these

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17. Which of the following possesses the characteristics of both plants and animals?
[A] Azolla
[B] Lycopodium
[C] Euglena

[D] Sphagnum

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18. Which of the following give maximum energy after breaking down?

[A] Fat
[B] Sugar
[C] Carbohydrate
[D] Protein

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19. The process by which ammonia is converted into nitrate is__?
[A] Nitrogen-fixation
[B] Ammonification
[C] Denitrification
[D] Nitrification

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20. What is the shape of enveloped viruses?
[A] icosahedral
[B] helical
[C] roughly spherical
[D] complex

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