Chapter 8

Question 1

HD interactions of light and electrons

Answer 1

Endergonic process → Requries Energy from Light E

Question 2

CC components of chloroplasts

Answer 2

Outer membrane
Intermembrane
inner membrane
Stroma (Inside Space)
granum (Stacks of CD)
Thylakoids (CD)

Question 3

CC photosystnesis I and II

Answer 3

photosystems 2 then 1
6CO2 + 6H2O + E -> C6H12O6 + 6O2
CO2: Reduced
O2: Oxidized

Question 4

photosystems 2

Answer 4

Light hits the pigment in PS 2
E passed to P680 and oxidized to P680+
E transferred to 1 e- acceptor

1 e-acceptor goes through ETC to TK Space to make H+

H+ diffuses through ATP synthase (facilitated diffusion)
ATP Synthesis

Water reduces P680+ to P680 and releases O2

Question 5

photosystems 1

Answer 5

E hits LHC pigments in PS1
E passed to P700 and oxidized to P700+
E transferred to 1 e- acceptor

1 e- acceptor goes through ETC to Ferredoxin(FD)
NADP+ -> NADPH

Used E from PS2 reduces P700+ -> P700

Question 6

Calvin Cycle (3)

Answer 6

Does Require ATP and NADPH from (PS2 and PS1)
3 phases: carbon fixation, reduction, RuBP regeneration

Question 7

1. Carbon Fixation:

Answer 7

3 CO2 (1C) + 3 (RuBP, 5C) = 3 unstable 6C Compound -> 6 (3C PGA)

Question 8

2. Reduction

Answer 8

6 PGA -> 6 ATP to 6 ADP and 6 NADPH to 6 NADP+ -> 6 G3P
1 = sugar and 5 = regeneration

Question 9

3.RuBP regeneration

Answer 9

5 G3P -> 3 ATP to 3 ADP -> 3 RuBP and starts over again