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A metabolic pathway is shown - Scottish Highers Human Biology - Question 4 - 2017
Question 4
A metabolic pathway is shown. metabolite P enzyme 1 metabolite Q enzyme 2 metabolite R enzyme 3 metabolite S In end-product inhibition A enzyme 3 binds to enzyme 1 B... show full transcript
Worked Solution & Example Answer:A metabolic pathway is shown - Scottish Highers Human Biology - Question 4 - 2017
Step 1
In end-product inhibition, which enzyme is involved?
Answer
In end-product inhibition, the final product in a metabolic pathway inhibits an earlier step to regulate the pathway's activity. In this case, metabolite S, the final product, binds to enzyme 1. This prevents the conversion of metabolite P to metabolite Q, thereby regulating the flow through the pathway. Therefore, the correct answer is C: metabolite S binds to enzyme 1.