Summary of 8.3

Concept 8.3 - The Calvin cycle makes sugar from carbon dioxide.

Key Terms:
(None)

Summary:
Calvin cycle
* sugar factory in chroloplast
* have similar process with Kereb's cycle in the cellular respiration
* starting material that gets regenerated is a compound called RuBP, a sugar with five carbons.
* inputs: carbon dioxide from the air and the ATP and NADPH produced by the light reactions
* outputs: energy-rich sugar molecule
Photosynthesis
* overal equestion: 6CO2 + 6H2O --- C6H12O6 + 6O2
* light reaction in thylakoid membranes change those energy into chemical energy of ATP and NADPH (water -- release the product oxygen)
* change carbon dioxide into sugars during the Calvin cycle by using ATP and NADPH

Concept Check:
1. What are the inputs and outputs of the Calvin cycle?
inputs: carbon dioxide from the air and the ATP and NADPH produced by the light reactions; outputs: energy-rich sugar molecule

2. Which stage of photosynthesis uses each reactant from the overall photosynthesis equation? Which stage generates each product from the overall photosynthesis equation?
the light energy process, and the calvin cycle

3. Why is the Calvin cycle called a cycle?
because its' process is similar to the Kereb's cycle which accurs in the cellular respiration which the stages generates and work differently

4. What molecule is the direct product of photosynthesis? How is that molecule then used by plant cells?
C6H12O6 + 6O2, to use them as food, also store them and use them when they need to use their energy for certain times