Biology MCQs

11. The Indian Pipe Plant or Monotrapa can be best placed in which among the following groups?
[A] Parasite
[B] Saprophyte
[C] Insectivorous
[D] Lithophyte

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12. Which of the following is the correct statement about heterotrophs?
[A] They obtain their energy from sunlight, harnessed by pigments
[B] They obtain their energy by oxidizing organic molecules
[C] They make organic molecules from CO2
[D] They obtain their energy by consuming exclusively autotrophs

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13. Which among the following are found in all viruses?
[A] DNA and proteins
[B] Nucleic acid and capsid
[C] DNA and cell membrane
[D] RNA and cell wall

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14. Which solution makes a cell turgid?
[A] Hypotonic solution
[B] Isotonic solution
[C] Hypertonic solution
[D] None of the above

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15. How many types of tissues are present in the body of all complex animals?
[A] 400
[B] 4000
[C] 40
[D] 4

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16. What is caused by the deficiency of Vitamin D? (UPSC Prelims 1980).
[A] Rickets
[B] Night blindness
[C] Pellagra
[D] Scurvy

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17. The messages received by and transmitted from the brain to the various parts of the body take the form of which of the following impulses? (UPSC Prelims 1983)
[A] Nervous impulses
[B] Chemical impulses
[C] Mechanical impulses
[D] Automatic impulses

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

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19. Which is the largest organ in the human body?
[A] Liver
[B] Large intestine
[C] Skin
[D] Pancreas

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20. Which branch of biology is deal with the study of seeds?
[A] Embryology
[B] Spermatology
[C] Gerontology
[D] Histology

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