Chapter 8: Photosynthesis, Part 2 Flashcards Preview

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Flashcards in Chapter 8: Photosynthesis, Part 2 Deck (8):
1

CO2 fixation takes place in the light-dependent reactions of photosynthesis

Calvin cycle

2

•Carbon from CO2 is added to ribulose 1,5-bisphosphate (RuBP) to produce two 3-phosphoglycerate (3PGA)

carbon fixation

3

Reactions oxidizing NADPH and consuming ATP convert 3PGA into G3P •2 molecules of G3P leave the cycle and form glucose

reduction

4

Some G3P molecules are used to produce RuBP (with energy from ATP) and the cycle begins again

regeneration

5

CO2 combines with RuBP, forming a six-carbon molecule that is split to form two
3PGA

RuBP carboxylase/oxygenase (RuBisCo)

6

A phosphate group from ATP is added to each 3PGA, producing two 1,3-
bisphosphoglycerate

3-phosphoglycerate kinase

7

Each 1,3-bisphosphoglycerate is reduced by electrons from NADPH, and
phosphate is removed, yielding G3P

1,3-bisphosphoglycerate kinase

8

Phosphate is transferred from ATP to ribulose 5-phosphate to regenerate RuBP

Ribulose 5-phosphate kinase