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GATE 2024 BT Q.37: solution and answer

GATE 2024 · BTQ.37 · 2 marks · MCQ

Match the industrial enzyme (Column I) with its application (Column II).

Column I: P. Lipase; Q. Ficin; R. Amylase; S. Glucosidase
Column II: 1. Maltose syrup production; 2. Oil degradation; 3. Oligosaccharide/monosaccharide production; 4. Meat tenderization

  1. (A)

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

  2. (B)

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

  3. (C)

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

  4. (D)

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

See the question in the paper

Answer and solution

ANSWER

The correct matching is P-2; Q-4; R-1; S-3, which is option (B).

Official answer: BSource: Official answer key, GATE 2024 BT (IISc Bengaluru)

  1. Lipase hydrolyses triglycerides (fats and oils) into glycerol and free fatty acids, so it matches 2, oil degradation (as in detergents and fat or oil removal). P-2.

  2. Ficin is a cysteine protease from fig latex. It breaks down muscle and connective-tissue proteins, so it matches 4, meat tenderization. Q-4.

  3. Amylase hydrolyses starch into smaller sugars; -amylase releases maltose, so amylase is the enzyme for 1, maltose syrup production. R-1.

  4. Glucosidase (-glucosidase) cleaves oligosaccharides and maltose into glucose, so it matches 3, oligosaccharide/monosaccharide production. S-3.

  5. The combination P-2; Q-4; R-1; S-3 is option (B).

  6. Option (A) assigns lipase to 3 and amylase to oil degradation, which is wrong. Option (C) matches ficin, a protease, with sugar production and glucosidase with meat tenderization, which is wrong. Option (D) assigns lipase to maltose syrup and amylase to meat tenderization, which is wrong.

KEY IDEA

Match each enzyme to the reaction it catalyses. Lipase acts on fats and oils, ficin (a protease) acts on meat proteins, amylase acts on starch to give maltose, and glucosidase releases glucose from oligosaccharides.

WATCH OUT FOR

Matching ficin with a sugar product, or amylase with meat tenderization. Ficin is a protease, and amylase and glucosidase act on carbohydrates, not proteins.

From the GATE 2024 BT paper. Every question of this paper · Download the full paper · All 4 Microbial products questions, with notes

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