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A competitive inhibitor of succinic dehydrogenase is
Options
(a) Malonate
(b) Oxaloacetate
(c) m-ketoglutarate
(d) Malate
Correct Answer:
Malonate
Explanation:
Malonate is a powerful inhibitor of cellular respiration, because it binds to the active site of the succinate dehydrogenase in the citric acid cycle but does not react, thereby competes with succinate, since it does not have the -CH₂-CH₂- group as in succinate which is required for dehydrogenation. For oxidative phosphorylation reaction, malonate is an inhibitor for complex II which again contain succinate dehydrogenase.
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Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Cell Structure and Functions
(413)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Continuous addition of sugars in fed batch fermentation is done to
- Which is not the main criteria for five kingdom system of classification?
- The hormone, which caused stunted growth in pea is
- The rhizoids of Funaria are
- Gametes are never hybrid. This is a statement of
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Cell Structure and Functions (413)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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