Biology MCQs

11. Which one of the following is the sweetest natural sugar ?
[A] Lactose
[B] Glucose
[C] Sucrose
[D] Fructose

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12. Where in the human body is the stapedius muscle situated?
[A] Nose
[B] Ears
[C] Leg
[D] Eyes

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13. Which of the following correctly defines an Antigen? (UPSC Prelims 2002)
[A] Lowers body temperature
[B] destroys harmful bacteria
[C] triggers the immune system
[D] is used as an antidote to poison

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14. Which among the following are female sex harmones?
[A] Estrogen
[B] Progesterone
[C] Testosterone
[D] Both a and b

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15. In the branch of biology which of the following deals with the Study of kidney?
[A] Nephrology
[B] Neurology
[C] Neonatology
[D] None of these

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16. Which of the following biologist is related to Cell Theory?
[A] Carl Linnaeus
[B] Theophrastus
[C] Theodor Schwann
[D] Francis Galton

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17. The theory of DNA structure and nature was propounded by __?
[A] Oswald Avery
[B] James Black
[C] Watson and Crick
[D] John Eccles

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18. Which of the following statements about the cell wall is false?
[A] cell wall is mainly composed of lipid
[B] cell wall is mainly composed of starch
[C] cell wall is mainly composed of protein
[D] All of the above

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19. Which one of the following is an example of a phospholipid?
[A] Steroid

[B] Cholesterol
[C] Lecithin
[D] Sterol

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20. The cell wall of Spirogyra contains__?
[A] Cellulose
[B] Chitin
[C] Lignin
[D] Suberin

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