Biology · Class 11 · Chapter 11
Photosynthesis in Higher Plants
12 lessons111 min7 simulations10 practice questions
This chapter explains how green plants capture light energy and store it as chemical energy in sugar. It moves from the classic experiments that revealed the process, through the pigments and the light-driven reactions in the thylakoids, to CO₂ fixation in the stroma by the C₃ and C₄ routes, photorespiration, and the factors that limit the rate.
Also called: photosynthesis · Calvin cycle · C4 pathway · light reaction
Lessons
12 lessons · 111 min
01What do we know about photosynthesisNCERT §11.17 min02Early experimentsNCERT §11.29 min03Where photosynthesis takes placeNCERT §11.37 min04Pigments involved in photosynthesisNCERT §11.410 min1 sim05The light reaction and the photosystemsNCERT §11.56 min06Electron transport, splitting of water and photophosphorylationNCERT §11.6–§11.6.210 min1 sim07Chemiosmotic hypothesis of ATP synthesisNCERT §11.6.39 min1 sim08Use of ATP and NADPH: the Calvin cycle (C₃ pathway)NCERT §11.7–§11.7.210 min1 sim09The C₄ pathwayNCERT §11.810 min1 sim10PhotorespirationNCERT §11.99 min1 sim11Factors affecting photosynthesisNCERT §11.1011 min1 sim12Chapter reviewMust-know facts, traps and formulas13 min
Simulations
7 in this chapter
Engelmann's bacteriaIn: Pigments involved in photosynthesisThe Z schemeIn: Electron transport, splitting of water and photophosphorylationMaking ATP from a proton gradientIn: Chemiosmotic hypothesis of ATP synthesisThe Calvin cycle's ledgerIn: Use of ATP and NADPH: the Calvin cycle (C₃ pathway)The C₄ carbon pumpIn: The C₄ pathwayRuBisCO's choiceIn: PhotorespirationLimiting factors in photosynthesisIn: Factors affecting photosynthesis