Question

Match List I with List II and select the correct answer.

List-I (Enzyme)	List-II( Conversions)
a. Phosphogluco isomerase	$1$. Fructose$\to$ Glucose
b. Triose phosphate isomerase	$2$. Glucose$\to$ Glucose-$6$-Phosphate
c. Fructose diphosphate aldolase	$3$. Glucose-$6$-phosphate$\to$Fructose-$6$-phosphate
d. Hexokinase	$4$. Glyceraldehydes-$3$-phosphate$\to$ Dihydroxy acetone phosphate
	$5$. Fructose-$1$, $6$-diphosphate$\to$ Glyceraldehydes-$3$-phosphate

• A. A-$5$, B-$4$, C-$1$, D-$2$
• B. A-$3$, B-$4$, C-$5$, D-$2$
• C. A-$5$, B-$2$, C-$1$, D-$4$
• D. A-$3$, B-$2$, C-$5$, D-$4$

Answer 1

The correct option is A A-$5$, B-$4$, C-$1$, D-$2$

• Phosphoglucose isomerase (PGI) is a dimeric enzyme that catalyses the reversible isomerisation of glucose-6-phosphate and fructose-6-phosphate. The correct match is a - 3.
• Triose-phosphate isomerase (TPI or TIM) is an enzyme that catalyzes the reversible interconversion of the triose phosphate isomers dihydroxyacetone phosphate and D-glyceraldehyde 3-phosphate. The correct match is b - 4.
• Fructose-bisphosphate aldolase, often just aldolase, is an enzyme catalyzing a reversible reaction that splits the aldol, fructose 1,6-bisphosphate, into the triose phosphates dihydroxyacetone phosphate (DHAP) and glyceraldehyde 3-phosphate (G3P). The correct match is c - 5.
• Hexokinase is the initial enzyme of glycolysis, catalyzing the phosphorylation of glucose by ATP to glucose-6-P. The correct match is d - 2.

So the correct answer is option B.