Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
During glycolysis, after ATP donates its phosphate group to activate glucose, what molecule does ATP become?
A
ADP (adenosine diphosphate)
B
GTP (guanosine triphosphate)
C
NADH
D
AMP (adenosine monophosphate)
Verified step by step guidance
1
Understand the role of ATP in glycolysis: ATP donates a phosphate group to glucose during the first step of glycolysis, which is known as phosphorylation. This process activates glucose for further breakdown.
Recall the structure of ATP (adenosine triphosphate): ATP consists of an adenosine molecule attached to three phosphate groups. When one phosphate group is removed, ATP becomes ADP (adenosine diphosphate).
Recognize that the removal of a phosphate group from ATP releases energy, which is used to drive the phosphorylation of glucose.
Eliminate incorrect options: GTP (guanosine triphosphate) is not involved in this step of glycolysis, NADH is an electron carrier formed later in glycolysis, and AMP (adenosine monophosphate) results from the removal of two phosphate groups, not one.
Conclude that after donating one phosphate group, ATP becomes ADP (adenosine diphosphate), which is the correct answer.