Q.37 Match enzymes in Group I with their corresponding industrial application
in Group II.
Group I Group II
P. Amylase 1. Laundry detergent
Q. Invertase 2. Fruit juice clarification
R. Pectinase 3. Liquefaction of sucrose
S. Xylanase 4. Pulp and paper processing
(A) P-2, Q-3, R-4, S-1
(B) P-1, Q-3, R-2, S-4
(C) P-1, Q-2, R-3, S-4
(D) P-1, Q-4, R-2, S-3
Amylase, invertase, pectinase, and xylanase are enzymes with specific industrial roles in sectors like detergents, food processing, and paper production. This article analyzes the NEET-style matching question (Q.37) to identify the correct option (B) and explains why.
Correct Matching
The accurate pairings are P (Amylase) with 1 (Laundry detergent), Q (Invertase) with 3 (Liquefaction of sucrose), R (Pectinase) with 2 (Fruit juice clarification), and S (Xylanase) with 4 (Pulp and paper processing). Option (B) P-1, Q-3, R-2, S-4 is correct. Amylase breaks down starches in detergents for stain removal, while the others align precisely with their biochemical actions in food and paper industries.
Enzyme Functions
Amylase hydrolyzes starch into sugars, making it ideal for detergent formulations to tackle starchy stains. Invertase specifically cleaves sucrose into glucose and fructose, enabling its use in sucrose liquefaction for confectionery. Pectinase degrades pectin in fruit cell walls for clearer juices, and xylanase breaks down hemicellulose in plant fibers for efficient pulp processing.
Option Analysis
| Option | Matching | Explanation |
|---|---|---|
| (A) P-2, Q-3, R-4, S-1 | Incorrect | Amylase does not clarify fruit juice (pectinase role); xylanase unfit for detergents. |
| (B) P-1, Q-3, R-2, S-4 | Correct | All pairings match enzyme substrates and industrial uses precisely. |
| (C) P-1, Q-2, R-3, S-4 | Incorrect | Invertase irrelevant to juice clarification; pectinase does not liquefy sucrose. |
| (D) P-1, Q-4, R-2, S-3 | Incorrect | Invertase unused in paper processing; xylanase not for sucrose . |
Industrial Relevance
These enzymes exemplify microbial biotechnology in sustainable manufacturing. For biology students in genetics or microbiology, understanding substrate specificity aids exam success and research into enzyme optimization.
