How many ATP are used to start glycolysis?

Question

a) 2

b) 3

c) 1

d) 0

e) 4

Answer 1

The answer is a) 2.  Glucose must be phosphorylated twice to make glucose-1,6-bisphosphate before further metabolism will occur.

Answer 2

the answer is 2.

the first ATP is used by Hexokinase to phosphorylate glucose to glucose-6-phosphate and the second ATP is used by phosphofructose kinase 1  to make fructose-1,6-bisphosphate

Answer 3

2