Class 11 Botany simulations · Photosynthesis in Higher Plants

Calvin cycle bookkeeping

Turn the Calvin cycle once per CO₂ fixed and keep count of the ATP and NADPH used.

Open the simulation

What to notice

Carboxylation by RuBisCO, reduction and regeneration of RuBP happen in the stroma.

Key relation

Per CO₂: 3 ATP + 2 NADPH ; 1 glucose = 6 turns = 18 ATP + 12 NADPH

Try this

How many turns are needed to make three glucose molecules?

What you can change

• CO₂ molecules fixed: 1 to 36

More in Photosynthesis in Higher Plants

• C₃ vs C₄ plants and photorespiration
• Light reaction: the Z scheme
• Limiting factors of photosynthesis

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