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How does enzyme feedback inhibition benefit a cell?

a) It speeds up metabolic reactions.
b) It slows down metabolic reactions.
c) It prevents the formation of enzymes.
d) It has no effect on cellular processes.

User Augie
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Final answer:

Enzyme feedback inhibition benefits a cell by slowing down metabolic reactions when product levels are high, thus preventing toxicity and maintaining homeostasis.

Step-by-step explanation:

Benefits of Enzyme Feedback Inhibition

Enzyme feedback inhibition is a critical cellular mechanism that helps maintain homeostasis by regulating metabolic pathways. It serves to balance the cell's internal environment by preventing the overaccumulation of metabolic products, which could become toxic if left unchecked. By altering the configuration of enzymes, feedback inhibition effectively slows down metabolic reactions when the cell's product levels reach a certain threshold. The inhibited enzymes are typically those that catalyzed the production of the now-abundant products; this is a safety mechanism to prevent waste and overproduction.

Feedback inhibition can be seen as a sophisticated form of cellular regulation, where the cell uses the products of its own reactions to autonomously control production rates. This kind of self-regulation is efficient and elegant, ensuring that cellular metabolism is tightly controlled and can respond quickly to changes in the cell's internal and external environment. Examples of regulation include molecules like cofactors, coenzymes, and the products of reactions themselves that can enact allosteric modulation or competitive and non-competitive inhibition.

User Iamcaleberic
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