E-PolyLearning

16. Chemical composition of an acylglycerols is esters of fatty acids and
a. bases
b. alcohol
c. water
d. acids
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Answer: (b).alcohol

17. Microorganisms secrete an enzyme which helps in digestion of cellulose known as
a. cellulase
b. catalase
c. sucrase
d. pepsin
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Answer: (a).cellulase

18. Derivatives of phosphatidic acid, which are composed of glycerol, fatty acids and phosphoric acids are known as
a. phospholipids
b. acylghycerols
c. triglycerides
d. esters
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Answer: (a).phospholipids

19. Maurice Wilkins and Rosalind Franklin determine structure of DNA using technique called
a. X-ray Diffraction
b. X-ray Refraction
c. X-ray Reflection
d. Y-ray Refraction
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Answer: (a).X-ray Diffraction

20. Lipids which are fats and oils are lighter, than water therefore have a specific gravity of about
a. 0.6
b. 0.8
c. 0.9
d. 0.1
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Answer: (b).0.8

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