Class 11 · Respiration in Plants

Acetyl-CoA Formation and Energy Yield — NEET Biology

🔥 Predicted for NEET 2027
📖 NCERT Source

Pyruvic acid + 4NAD+ + FAD+ + 2H2O + ADP + Pi → 3CO2 + 4NADH + 4H+ + FADH2 + ATP

NCERT Biology · Class 11 · Chapter 12 · Paragraph 33
Why This May Be Tested in NEET 2027

Adjacent to a frequently-asked paragraph in the same chapter.

Practice This Concept
QuestionPredicted for NEET 2027

Why is PEP → pyruvate step known for substrate-level phosphorylation?

📖 Solution & NCERT Explanation
View solution & NCERT explanation

Correct answer: A It directly forms ATP

PEP donates a phosphate to ADP, forming ATP without ETS involvement.

❓ Frequently Asked Questions
What does NCERT say about Pyruvic acid 4NAD FAD?
Pyruvic acid + 4NAD+ + FAD+ + 2H2O + ADP + Pi → 3CO2 + 4NADH + 4H+ + FADH2 + ATP
Has this concept appeared in NEET?
High probability for NEET 2027. Adjacent to a frequently-asked paragraph in the same chapter.
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.

176/180
of the ReNEET 2026 paper (all subjects) was already in the MedicNEET question bank

MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.

176 of 180 ReNEET 2026 questions traced to MedicNEET17,000+ Biology questionsHindi + English
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