Ligjt dependant reaction

Question 1

1st step

Answer 1

light strikes chlorophyll of PSII exciting the electron pair

Question 2

2nd step

Answer 2

electrons go down from PSII, energy released through series of redox reactions

Question 3

3rd step

Answer 3

hydrogens go into the lumen creating a concentration gradient with hydrogen

Question 4

4th step

Answer 4

hydrogen must go through ATP synthase to flow down concentration gradient (Lumen to Stroma)

Question 5

5th step

Answer 5

energy released by down gradient flow of hydrogen, reduce ADP to ATP

Question 6

6th step

Answer 6

electrons enter into PSI and excited by light again

Question 7

7th step

Answer 7

electrons excited an PSI are passed down an ETC, redox reactions release energy

Question 8

8th step

Answer 8

energy released is used to reduce NADP+ to NADPH (H for Hi)

Question 9

9th Step

Answer 9

energy carried ATP and NADPH to the dark reactions

Question 10

10th step

Answer 10

electrons, hydrogen are replaced by photolysis, which also releases O2
(Light splits water, releasing protons, electrons, and oxygen humans breathe)

Question 11

Chemiosmosis

Answer 11

process of hydrogen diffusing across thylakoid membrane (lumen to stroma) Uses ATP synthase