Question

Which of the following is trus? A) During saponification of triglycerides smide bends me lydrolyzed using Koll or Not B) Hydrolysis of sphingolipids yields two free amino groups and two fatty acids C) A wax is an ester with two very long hydrocarbon chains D) Active transport of molecules across membranes requires an energy input E) C and D are both correct answers 35. The following perspective formula represents? (Hydrogen atoms bonded to carbs are not shown) CH OH O, OH KOH OH ОН A. G-D-glucopyranese B.B-D-glucofurmese C-D-glucofurose D.D-D-glaceres The difference between Alanine and Serine is the following The absence of a thiol group The presence of a-CH, and SH in serine The presence of a hydroxyl group in Serine and CH, in alanine The presence of a carboxyl group 37. Which of the following substances is an example of a globular protein? Keratin B) Collagen c) Hemoglobin D) All above are globular 38. Which one of the following best describes the structure of glyceraldehyder? A. Ketohexose B. Aldotriose C. Aldapentese D. Ketotriose 39. fructose, ribose and galactose are all examples of A) Monosaccharides B) Dipeptides C) Aminoacids D) Disaccharides 40. The compound shown → A. A glycolipid B. A fructose derivative C. A sugar phosphate D. An amino acid E. An N-acetyl sugar derivative

Answer 1

34) Answer is E). Was is an ester of long chain alcohol and Carboxylic acid. Active Transport require energy because molecules have to go against concentration gradient.

35) Answer is D). Since ring is of six atoms hence it is pyranose and also OH on carbon-1 is upside hence it is beta.

36) Answer is C). Serine contain OH group and CH3 in alanine.

37) Answer is C). All other are fibrous protein.

38) Answer is B). It is aldotriose because it contain Aldehyde and contain 3 carbons hence Triose.

39) Answer is D). All are disaccharides.

40) Answer is E).

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