Pyruvate Dehydrogenase Complex Reaction — NEET Biology
📚 Practice Concept📖 NCERT Source
Pyruvic acid + CoA + NAD+ —Mg2+ Pyruvate dehydrogenase→ Acetyl CoA + CO2 + NADH + H+
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QuestionPractice Question
A maize root cell under anaerobic stress accumulates lactic acid. Which statements explain survival? 1. Glycolysis produces ATP. 2. NADH is reoxidised to NAD⁺. 3. Pyruvate is converted to acetyl-CoA for Krebs’ cycle.
📖 Solution & NCERT Explanation
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Correct answer: A — 1 and 2 only
Anaerobic fermentation (12.2 + 12.4) sustains glycolysis via NAD⁺ regeneration; acetyl-CoA conversion requires O₂.
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What does NCERT say about Pyruvic acid CoA NAD?
Pyruvic acid + CoA + NAD+ —Mg2+ Pyruvate dehydrogenase→ Acetyl CoA + CO2 + NADH + H+
Has this concept appeared in NEET?
Practice this NCERT concept with questions on MedicNEET.
Which chapter is this from?
Respiration in Plants, Class 11 NCERT Biology.
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
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