Which of the following is the first enzyme of glycolysis?

Question:  Which of the following is the first enzyme of glycolysis?

A    Phosphofructokinase

B    PEP–carboxylase

C     Hexokinase

D     Isomerase

Answer: Hexokinase

 

Enzyme involved in glycolysis

 

Substrate
1.       Hexokinase

 

Glucose
2.       Phosphoglucose Isomerase

 

Glucose-6-phosphate
3.       Phosphofructokinase-1

 

Fructose-6-phosphate
4.       Aldolase

 

Fructose-1,6-bisphosphate
5.       Triosephosphate Isomerase

 

Dihydroxyacetone phosphate
6.       Glyceraldehyde-3-Phosphate Dehydrogenase

 

Glyceraldehyde-3-phosphate
7.       Phosphoglycerate Kinase

 

1,3-Bisphosphoglycerate
8.       Phosphoglycerate Mutase

 

3-Phosphoglycerate
9.       Enolase

 

2-Phosphoglycerate
10.     Pyruvate Kinase Phosphoenolpyruvate