Respiration in Plants — NEET/JEE Questions, Notes & Weightage
Covers glycolysis, the Krebs cycle, the electron transport chain, oxidative phosphorylation, fermentation, and the respiratory quotient. Net-ATP-yield questions and step-by-step pathway sequencing are asked almost every year, making this chapter essential rather than optional.
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Frequently asked questions
What ATP-yield numbers does NEET expect me to know?
The net ATP yield from glycolysis, the Krebs cycle, and the full aerobic breakdown of one glucose molecule (and how textbook figures like 36-38 ATP are derived) are commonly tested.
Which pathway step is asked most often?
The site and key enzymes of glycolysis (cytoplasm) versus the Krebs cycle (mitochondrial matrix), and which step produces CO2 first, are frequent question points.
Is fermentation tested separately from aerobic respiration?
Yes — lactic acid vs ethanol fermentation, the organisms/cells that use each, and why anaerobic respiration yields far less ATP, are commonly contrasted in NEET MCQs.