MHT CET 202623 AprilMorning Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 23 April
- Shift
- Morning Shift
- Subject
- Biology
- Chapter
- Respiration in Plants
MHT CET 2026 · 23 April · Morning Shift · Biology · Respiration in Plants
Which enzyme is responsible for phosphorylation of glucose with ATP?
Which enzyme is responsible for phosphorylation of glucose with ATP?
Options
- AHexokinase
- BPhosphofructokinase
- CAldolase
- DPhosphohexose isomerase
Correct answer
A. Hexokinase
Step-by-step solution
The first step of glycolysis involves the phosphorylation of glucose to form glucose-6-phosphate.
This reaction is catalyzed by the enzyme hexokinase, which uses ATP as the phosphate donor.
Phosphofructokinase catalyzes the phosphorylation of fructose-6-phosphate to fructose-1,6-bisphosphate.
Aldolase catalyzes the cleavage of fructose-1,6-bisphosphate into two three-carbon sugars.
Phosphohexose isomerase catalyzes the isomerization of glucose-6-phosphate to fructose-6-phosphate.
Answer: Hexokinase
This reaction is catalyzed by the enzyme hexokinase, which uses ATP as the phosphate donor.
Phosphofructokinase catalyzes the phosphorylation of fructose-6-phosphate to fructose-1,6-bisphosphate.
Aldolase catalyzes the cleavage of fructose-1,6-bisphosphate into two three-carbon sugars.
Phosphohexose isomerase catalyzes the isomerization of glucose-6-phosphate to fructose-6-phosphate.
Answer: Hexokinase