1. Using your knowledge of photosynthesis label the following diagram.
Name:
B
C
A
D
K
L
F
G
M
H
E
N
I
J
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
L.
M.
N
2. What is providing the energy for the light reactions?
3. What provides the electrons for the light reactions?
4. What is a waste product of the light reactions?
5. Label the following diagram of the light reaction.
Photosystem ___
Photosystem ___
A
A
F
G
B
C
I
D
H
J
E
K
L
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
L.
6. What is the function of ATP and NADPH produced in the light reactions?
7. What is the role of CO2 in the Calvin Cycle?
8. What is the end product of the Calvin Cycle and what is it used for?
9. What are two ways to shut down the Calvin Cycle?
10. When would a plant not have enough CO2 to go through photosynthesis?
11. What adaptations do CAM and C4 plants have to deal with extreme heat?
1. Using your knowledge of photosynthesis label the following diagram.
Name:
B
C
A
D
K
L
F
G
M
H
E
N
I
J
A. Sunlight
B. Water
C. CO2
D. Chloroplast
E. Granum
F. Calvin Cycle
G. Light Reactions
H. Stoma
I. O2
J. Glucose
K. NADP
L. ADP
M. ATP
N. NADPH
2. What is providing the energy for the light reactions?
Sunlight is providing the enrgy for the light reactions
3. What provides the electrons for the light reactions?
Water provides the electrons for light reactions
4. What is a waste product of the light reactions?
The waste product of the light reaction is oxygen
5. Label the following diagram of the light reaction.
1.
Photosystem ___
2.
Photosystem ___
A
A
F
G
B
C
I
D
H
J
E
K
L
A. Sunlight
B. water
C. H+
D. Thylakoid inner membrane
E. Stoma
F. NADH
G. NADPH
H. Calvin Cycle
I. H+
J. ATP Synthase
K. ADP
L. ATP
6. What is the function of ATP and NADPH produced in the light reactions?
ATP and NADPH provide the energy for the Calvin cycle. They both are used to convert CO 2 into glucose.
7. What is the role of CO2 in the Calvin Cycle?
CO2 combines with a 5 carbon sugar which is then converted to glucose
8. What is the end product of the Calvin Cycle and what is it used for?
The end product is glucose which is then used as energy for cellular respiration
9. What are two ways to shut down the Calvin Cycle?
The Calvin cycle can be shut down by restricting ATP and NADPH or by reducing the amount of CO 2
10. When would a plant not have enough CO2 to go through photosynthesis?
A plant will stop photosynthesis when it becomes too hot. The plant will shut its stomata to reduce water lose and as a result CO 2
will not be able to enter the plant
11. What adaptations do CAM and C4 plants have to deal with extreme heat?
CAM plants will open their stomata at night and then store the CO2 as malic acid and during the day it will release the CO 2 to
enter the Calvin cycle.
C4 plants will open their stomata day or night but will store the CO 2 in their bundle sheath and release it later to enter the Calvin
cycle.
Both are adaptation to extreme heat / prevent water loss.