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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
- Which of these is not an important component of initiation of parturition in humans ?
- When pollen of a flower is transferred to the stigma of another flower of
- The function of iris in the eyes of the frog is to
- Chordae tendineae are found in
- Wisdom teeth in human are
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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