Vocabualry: Define

Photosynthesis Overview

Vocabualry: Define

Photosynthesis

Autotroph

Heterotroph

Chloroplast

Chlorophyll

Stroma

Thylakoids

Grana

Light Reactions

Photophosphorylation

Calvin Cycle

Carbon fixation

visible light

Photon

Questions

1. Why is neither oxygen nor NADPH generated by cyclic electron flow?How is ATP produced by cyclic electron flow?

2. What 3 factors contribute to the formation of the large difference in H+ concentration between the thylakoid space and the stroma?

3. Where does the Calvin cycle occur in C4 plants?

4. How can C4 plants perform the Calvin cycle in hot dry conditions when C3 plants would be doing photorespiration?

Chlorophyll a

Chlorophyll b

carotenoids

Photosystems

Light-harvesting complex

Reaction center complex

Photosystem II

Photosystem I

Rubisco

C3 Plants

C4 Plants

bundle-sheath cells

PEP Carboxylase

CAM plants

5. Why does C4 photosynthesis require more ATP than C3 photosynthesis?

6. How is chemiosmosis different in the chloroplast when compared to the mitochondria?

7. What is the ultimate electron acceptor in the light reactions?