Question

Match the LIST I (Enzyme) with LIST II (Catabolic Products) 

LIST-I		LIST-II
(Enzyme)		(Catabolic Products)
A	\(\beta\)-galactosidase	III	Galactose + glucose
B	Lecithinase	I	Choline + H$_3$PO$_4$ + fat
C	Urease	IV	CO$_2$ + NH$_3$
D	Lipase	II	Glycerol + fatty acids

• A. A - III, B - IV, C - I, D - II
• B. A - III, B - I, C - IV, D - II
• C. A - III, B - II, C - IV, D - I
• D. A - II, B - I, C - IV, D - III

Hint:

The names of enzymes often indicate their substrate: \(\beta\)-galacto\textbf{sidase} acts on a galacto\textbf{side} (lactose), Lip\textbf{ase} acts on Lip\textbf{ids} (fats), Ure\textbf{ase} acts on Ure\textbf{a}.

Answer 1

The Correct Option is B

Step 1: Identify the substrate and products for each enzyme.
A. \(\beta\)-galactosidase: This enzyme, also known as lactase, hydrolyzes the disaccharide lactose into its constituent monosaccharides. This matches III. Galactose + glucose.
B. Lecithinase (Phospholipase): This enzyme breaks down lecithin (a phospholipid). The products include a diglyceride (fat), phosphoric acid, and choline. This matches I. Choline + H$_3$PO$_4$ + fat.
C. Urease: This enzyme catalyzes the hydrolysis of urea into ammonia and carbon dioxide. This matches IV. CO$_2$ + NH$_3$.
D. Lipase: This is an enzyme that breaks down fats (triglycerides) into their components. This matches II. Glycerol + fatty acids.
The correct set of matches is A-III, B-I, C-IV, D-II.