Photosynthesis

Question 1

Key points about light dependant reaction
ETC
ATP synthase

Answer 1

Etc
Complex of proteins that transfer electrons between PS11 and PS1
ATP synthase
Enzyme responsible for atp synthase

Question 2

In light dependant reaction electrons are…

Answer 2

Removed from water
Passed from ps11 and ps1
Accepted by NADP, reducing it to NADPH

Question 3

Where does the light independent reaction occur?

Answer 3

Stroma

Question 4

What is the LiR regulated by?

Answer 4

Enzymes, availability of substrates, presence products

Question 5

What does LDR produce?

Answer 5

ATP and NADPH

Question 6

Draw the Calvin cycle

Answer 6

Ribulose bisphosphate, catalyses GP from 3Co2 (carboxylation) — 6 ATP — 6 NADPH ——- triose phosphate —-Glucose (product formation—- 3 atp —— ribulose bisphosphate (regeneration)

Question 7

In the light reaction of photosynthesis, light energy generates ATP. Describe how

Answer 7

1. light energy excites/ raises energy level of electrons in chlorophyll
2. Electrons emitted and pass down electron transport chain
3. Electron transport chain associated with chloroplast membranes in thylakoids
4. Energy released at decreasing energy levels
5. ATP generated from Phosphorylation of atp