E-PolyLearning

11. Which is not true about a photon?
a. It is a packet of light energy
b. The shorter the wavelength, the greater the energy of the photons
c. It is trapped by photosynthetic unit
d. It donates electron to reduce carbon dioxide to glucose
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Answer: (d).It donates electron to reduce carbon dioxide to glucose

12. If the ends of the following polysaccharide are pulled, which one would stretch the most?
a. Glycogen
b. Starch
c. Cellulose
d. None of these
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Answer: (b).Starch

13. "The universe tends towards maximum disorder" is stated by
a. first law of thermodynamics
b. second law of thermodynamics
c. third law of thermodynamics
d. none of the above
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Answer: (b).second law of thermodynamics

14. Water content of active protoplasm is
a. 10%
b. 40%
c. 70%
d. 90%
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Answer: (d).90%

15. Which of the following is not an electron carrier class in the electron transport chain?
a. Flavoproteins
b. Cytochromes
c. Iron - sulfur proteins
d. Cytochrome c oxidase
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Answer: (d).Cytochrome c oxidase

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