Figure 9.1 illustrates some of the steps (reactions) of glycolysis in their proper sequence. Each step is lettered. Use these letters to answer the questions.

Figure 9.1
-Which portion of the pathway in Figure 9.1 contains a phosphorylation reaction in which ATP is the phosphate source?
A) A
B) B
C) C
D) D
E) E

Question

Figure 9.1 illustrates some of the steps (reactions) of glycolysis in their proper sequence. Each step is lettered. Use these letters to answer the questions.
  
Figure 9.1
-Which portion of the pathway in Figure 9.1 contains a phosphorylation reaction in which ATP is the phosphate source?
A) A 
B) B 
C) C 
D) D 
E) E

Quizplus · Accepted Answer

Step A is the only portion of the pathway in Figure 9.1 that involves a phosphorylation reaction in which ATP is the phosphate source. This step involves the enzyme hexokinase catalyzing the transfer of a phosphate group from ATP to glucose, forming glucose-6-phosphate.

Figure 91 Illustrates Some of the Steps (Reactions) of Glycolysis in in Their