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Question

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

List-I (Enzyme)List-II( Conversions)
a. Phosphogluco isomerase1. Fructose Glucose
b. Triose phosphate isomerase2. Glucose Glucose-6-Phosphate
c. Fructose diphosphate aldolase3. Glucose-6-phosphateFructose-6-phosphate
d. Hexokinase4. Glyceraldehydes-3-phosphate Dihydroxy acetone phosphate
5. Fructose-1, 6-diphosphate Glyceraldehydes-3-phosphate

A
A-5, B-4, C-1, D-2
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B
A-3, B-4, C-5, D-2
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C
A-5, B-2, C-1, D-4
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D
A-3, B-2, C-5, D-4
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Solution

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.


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