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Photosynthesis Part 2

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

The Calvin Cycle takes place in the:

a)

Stroma

b)

Thylakoid

c)

Grana

d)

Stomata

2.
The enzyme responsible for Carbon Fixation in C3 Photosynthesis is
a)
RuBisCo
b)
PEP Carboxylase
c)
Hexokinase
d)
Pyruvate DeHydrogenase
3.
The enzyme responsible for Carbon Fixation in C4 Photosynthesis is
a)
RuBisCo
b)
PEP Carboxylase
c)
Hexokinase
d)
Pyruvate DeHydrogenase
4.
The molecule that comes out of the Calvin Cycle to produce glucose, and polymers like cellulose is:
a)
RuBP
b)
GP3
c)
3-PG
d)
G3P
5.
In CAM Photosynthesis CO2 is stored as:
a)
Malate
b)
RuBP
c)
Pyruvate
d)
G3P
6.
Carbon fixation in CAM plants occurs during the:
a)
Day
b)
Night
7.

The main problem encountered by C3 plants in hot conditions is:

a)

Transpiration

b)

Photorespiration

c)

Dehydration

d)

Starvation

8.
Which of the following molecules is not needed for the Calvin Cycle?
a)
CO2
b)
ATP
c)
NADPH
d)
H2O
9.
Which is not a phase of the Calvin Cycle?
a)
Carbon Fixation
b)
Reduction
c)
Regeneration of RuBP
d)
Regeneration of Oxaloacetate
10.
Which is not a phase of the Calvin Cycle?
a)
Carbon Fixation
b)
Reduction
c)
Regeneration of RuBP
d)
Regeneration of Oxaloacetate
11.

In C4 plants, the Calvin cycle....

a)

Takes place at night

b)

Only occurs when the stomata are closed

c)

Takes place in the mesophyll

d)

Takes place in the bundle-sheath cells

12.

CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they

a)

fix CO2 into organic acids during the night when temperatures are cooler.

b)

fix CO2 into by combining it with RuBP in the Calvin cycle.

c)

obtain CO2 through their roots during the day.

d)

fix CO2 into organic acids in the mesophyll cells, which do not rely on stomata.

13.

Which of these would be considered a C4 Pathway plant?

a)

cactus

b)

sugar cane

c)

oak tree

d)

aglae

14.

Which of these would be considered a CAM pathway plant?

a)

cactus

b)

corn

c)

elm tree

d)

algae

15.

Oxygen becomes attached to RuBP during...

a)

C3 pathway

b)

C4 pathway

c)

Calvin-Benson Cycle

d)

Photorespiration

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