An example of competitive inhibition of an enzyme is the inhibition of _____________.Question 36Answera.succinic dehydrogenase by malonic acidb.cytochrome oxidase by cyanidec.carbonic anhydrase by carbon dioxided.hexokinase by glucose-6-phosphate
Question
An example of competitive inhibition of an enzyme is the inhibition of _____________.Question 36Answera.succinic dehydrogenase by malonic acidb.cytochrome oxidase by cyanidec.carbonic anhydrase by carbon dioxided.hexokinase by glucose-6-phosphate
Solution
The example of competitive inhibition of an enzyme is the inhibition of succinic dehydrogenase by malonic acid.
Here's the step by step explanation:
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Competitive inhibition is a type of enzyme inhibition where the inhibitor, which is similar in structure to the substrate, competes with the substrate for binding to the active site of the enzyme.
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In the case of succinic dehydrogenase, the substrate is succinate, a molecule involved in the citric acid cycle.
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Malonic acid is structurally similar to succinate, so it can bind to the active site of succinic dehydrogenase, preventing succinate from binding and thus inhibiting the enzyme's function.
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This is a classic example of competitive inhibition because malonic acid directly competes with succinate for the active site of the enzyme.
So, the correct answer is a. succinic dehydrogenase by malonic acid.
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