Role of O₂ and Electron Transport Chain — NEET Biology
🔥 Predicted for NEET 2027We have till now seen that glucose has been broken down to release CO2 and eight molecules of NADH + H+ and two of FADH2 have been synthesised besides just two molecules of ATP in TCA cycle. You may be wondering why we have been discussing respiration at all – neither O2 has come into the picture nor the promised large number of ATP has yet been synthesised. Also what is the role of the NADH + H+ and FADH2 that is synthesised? Let us now understand the role of O2 in respiration and how ATP is synthesised.
Adjacent to a frequently-asked paragraph in the same chapter.
Which metabolic process contributes to only 2 ATPs despite involving many steps?
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.