GATE XE Food Chemistry and Nutrition PYQs & Answers — Page 6

Questions 51–56 of 56. Imported answers require independent review unless marked reviewed.

For an enzyme catalyzed reaction S ➞ P, the kinetic parameters are: [S] = 40 μM, V₀ = 9.6 μM s^ and V_ = 12.0 μM s^. The Kₘ of the enzyme in μM will be ______.(up to one decimal points)

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Indicate the correct group that contains a monosaccharide, a disaccharide and a trisaccharide.

Your answerChoose one option.

Glucose, sucrose, mannose

Ribose, lactose, raffinose

Mannose, maltose, lactose

Raffinose, stachyose, glucose

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Nutrient composition of wheat flour changes with extent of extraction from whole wheat grain. Which of the following statements is true if the extraction rate increased from 50% to 90%?

Your answerChoose one option.

Starch increases, protein increases, fat increases, mineral increases

Starch decreases, protein increases, fat increases, mineral increases

Starch decreases, protein decreases, fat increases, mineral decreases

Starch decreases, protein increases, fat decreases, mineral decreases

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Match the following items of group I with the items of group II in relation to the quality of fat.

Group I: P. Saponification number; Q. Iodine number; R. Reichert Meissl number; S. Acetyl value.

Group II: 1. Unsaturation of fatty acid; 2. Volatile water soluble fatty acid; 3. Hydroxy fatty acid; 4. Molecular weight of fatty acid

Your answerChoose one option.

P-1, Q-2, R-3, S-4

P-1, Q-3, R-4, S-2

P-4, Q-1, R-2, S-3

P-2, Q-1, R-3, S-4

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Correlate the vitamins in column I with their role in promoting reaction/process in column II.

Column I: P. Riboflavin; Q. Vitamin D; R. Pantothenic acid; S. Vitamin A.

Column II: 1. Visual cycle; 2. Acyl group transfer; 3. Regulation of Ca

metabolism; 4. Oxidation-reduction reaction

Your answerChoose one option.

P-1, Q-2, R-4, S-3

P-2, Q-1, R-3, S-4

P-3, Q-4, R-1, S-2

P-4, Q-3, R-2, S-1

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The Lineweaver-Burk plot of an enzymatic reaction shows V

of 160 μmol/l.min and k

of 60 μmol/l. For a substrate concentration of 40 μmol/l, the velocity of the reaction is estimated to be ______ μmol/l.min.

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GATE XE Food Chemistry and Nutrition PYQs

Question 18

Question 122

Question 125

Question 131

Question 133

Question 137