Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: ATP is used at two steps in glycolysis.
Reason R: First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of fructose-6-phosphate into fructose-1, 6-diphosphate.
In the light of the above statements, choose the correct answer from the options given below:
- A
Both A and R are true and R is the correct explanation of A.
- B
Both A and R are true but R is NOT the correct explanation of A.
- C
A is true but R is false.
- D
A is false but R is true.
Glycolysis spends two ATPs in its preparatory phase: hexokinase phosphorylates glucose to glucose-6-phosphate, and phosphofructokinase phosphorylates fructose-6-phosphate to fructose-1,6-bisphosphate. The reason therefore correctly identifies the two ATP-using steps.
Practice more Biology
Concept-wise practice with instant solutions on Fundamenthol.
Start practicing →