Biology / Unit 3 Bio 0616 review, 2 to 3 minutes
Tracing Carbon and Energy Through Photosynthesis
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The idea
This capstone traces one carbon dioxide molecule and the energy that fixes it through both stages of photosynthesis, from light absorption to its export as G3P.
Where people slip
The traced carbon atom enters the Calvin cycle only after the light-dependent reactions have already supplied its ATP and NADPH — carbon fixation cannot outrun the energy capture that funds it.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
- 0579The Overall Equation of Photosynthesis
- 0583Two Stages of Photosynthesis
- 0593Photosystem II and the Splitting of Water
- 0597Photosystem I and NADPH Formation
- 0599Chemiosmosis in the Thylakoid
- 0601The Light-Dependent Reactions, Full Sequence
- 0603Carbon Fixation by RuBisCO
- 0605The Calvin Cycle: Three Stages
- 0607G3P as the Calvin Cycle's Export
Unlocks
- Nothing yet depends on this.
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