Question

Conversion of glucose to glucose-6-phosphate is catalyzed by

• A. Phosphofructokinase
• B. Aldolase
• C. Enolase
• D. Hexokinase

Answer 1

The correct option is D

Hexokinase

The correct option is D.

Explanation for correct option:

1. The enzyme Hexokinase is known to catalyze the conversion of glucose to glucose-6-phosphate.
2. It is an irreversible reaction and requires ATP.
3. It is a part of glycolysis.

Explanation for incorrect options:

Option A:

1. Phosphofructokinase in glycolysis converts fructose-6-phosphate to fructose-1,6-bisphosphate.

Option B:

1. Aldolase is an enzyme that catalyzes the conversion of fructose 1-6-diphosphate to glyceraldehyde 3-phosphate and dihydroxy-acetone phosphate .

Option C:

1. The enzyme Enolase converts 2-phosphoglycerate to 2-phosphoenolpyruvate

Final Answer: The enzyme hexokinase is known to catalyze the conversion of glucose to glucose-6-phosphate..