Enzyme Inhibition Mechanisms — NEET Biology
🔥 Predicted for NEET 2027Shuts off enzyme activity, the process is called inhibition and the chemical is called an inhibitor.
Adjacent to a frequently-asked paragraph in the same chapter.
Given below are two statements: [NEET 2023] Statement I: Low temperature preserves the enzyme in a temporarily inactive state whereas high temperature destroys enzymatic activity because proteins are denatured by heat. Statement II: When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of enzyme, it is known as competitive inhibitor.
View solution & NCERT explanation
Correct answer: A — Both true
Both statements are correct. Low temperature inactivates enzymes reversibly, while high temperature causes irreversible denaturation. Competitive inhibitors structurally mimic substrates and bind to the active site, blocking enzyme function.
What does NCERT say about Shuts off enzyme activity?
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