Biology · Class 11 · Chapter 12
Respiration in Plants
11 lessons 88 min 2 simulations
This chapter follows a glucose molecule as a cell takes it apart, step by step, to fill ATP. It starts with why plants manage without lungs, then runs through glycolysis in the cytoplasm, fermentation when oxygen is short, and the link reaction, Krebs' cycle and electron transport inside the mitochondrion, before totting up the ATP, showing that the pathway builds as well as breaks, and measuring substrates with the respiratory quotient.
What the exam asks
NEET asks for exact counts: the ATP-using and ATP-making steps of glycolysis, the NADH and FADH₂ made at each stage, the 3 and 2 ATP per NADH and FADH₂, the 38 ATP total, and RQ values of 1, 0.7 and about 0.9. Students lose marks by placing Krebs' cycle on the inner membrane instead of the matrix, by forgetting that glycolysis runs in the cytoplasm of every organism, and by mixing up the enzymes and complexes of fermentation and the ETS.
Lessons
11 lessons · 88 min
1Respiration and ATPNCERT §12 (opening text, before §12.1)7 min2Do plants breathe?NCERT §12.17 min3GlycolysisNCERT §12.27 min4FermentationNCERT §12.2–§12.37 min5Aerobic respiration: pyruvate to acetyl CoANCERT §12.46 min6Tricarboxylic acid cycleNCERT §12.4.18 min7Electron transport system and oxidative phosphorylationNCERT §12.4.28 min8The respiratory balance sheetNCERT §12.510 min 1 sim9Amphibolic pathwayNCERT §12.66 min10Respiratory quotientNCERT §12.710 min 1 sim11Chapter reviewMust-know facts, traps and formulas12 min