Step-Wise Energy Release in Respiration — NEET Biology
📚 Practice ConceptWhat is the significance of step-wise release of energy in respiration?
Assertion (A): Only carbohydrates are oxidized to release energy during cellular respiration. Reason (R): Proteins, fats and organic acids can be used as respiratory substrates under certain conditions.
View solution & NCERT explanation
Correct answer: D — If the assertion is false but the reason is true.
NCERT states “Usually carbohydrates are oxidised to release energy, but proteins, fats and even organic acids can be used as respiratory substances in some plants, under certain conditions.” The Assertion removes the qualifier “usually” making it false - other substrates can indeed be used. The Reason is true from NCERT, stating the exception that makes the Assertion false.
What does NCERT say about What significance step-wise release?
Has this concept appeared in NEET?
Which chapter is this from?
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.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.