The biochemical pathway of glycolysis involves nine intermediate reaction steps - VCE - SSCE Biology - Question 5 - 2017 - Paper 1
Question 5
The biochemical pathway of glycolysis involves nine intermediate reaction steps.
One of these steps is represented in the diagram below.
phosphofructokinase
fructo... show full transcript
Worked Solution & Example Answer:The biochemical pathway of glycolysis involves nine intermediate reaction steps - VCE - SSCE Biology - Question 5 - 2017 - Paper 1
Step 1
A. acts as a coenzyme.
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Answer
This is incorrect. Phosphofructokinase acts as an enzyme in this reaction, not a coenzyme.
Step 2
B. increases the rate of reaction.
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Answer
This is correct. Phosphofructokinase catalyzes the reaction, thereby increasing the rate of glycolysis.
Step 3
C. is the substrate for the reaction.
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Answer
This is incorrect. Fructose 6-phosphate is the substrate, not phosphofructokinase.
Step 4
D. releases energy in the form of ADP.
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Answer
This is incorrect. The enzyme catalyzes the transfer of a phosphate group from ATP to fructose 6-phosphate, producing ADP, but it does not release energy as a product.
