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Photosynthesis part 2

Total questions: 30

Worksheet time: 17mins

Name
Class
Date
1.
Where does the light independent reaction take place?
a)
Matrix
b)
Stroma
c)
Thylakoid membrane
d)
Cytoplasm
2.
How many carbon atoms are in RuBP?
a)
2
b)
3
c)
4
d)
5
3.
What provides the reducing power for the Calvin cycle?
a)
ATP
b)
ADP
c)
NADP
d)
NADPH2
4.
What provides the energy for the Calvin cycle?
a)
ATP
b)
ADP
c)
NADP
d)
NADPH2
5.
What reactants are needed for the Calvin cycle?
a)
Carbon dioxide
b)
Carbon dioxide, ATP and NADPH2
c)
Carbon dioxide and glucose
d)
Oxygen and water
6.
How many G3P molecules make one molecule of glucose? 
a)
1
b)
2
c)
3
d)
4
7.
What happens to NADPH and ATP after they are used in the Calvin Cycle?
a)
they recycle back to the light reactions
b)
they are used to make G3P
8.
What happens to the remaining G3P molecules in the last step of the dark reactions?
a)
They are used to make glucose.
b)
They are reshuffled to make CO2 by adding ATP.
c)
They exit the cycle.
d)
They are reshuffled to make RuBP by adding ATP. 
9.
In the Calvin Cycle, carbon from CO2 is added to one molecule of RuBP to create _________.
a)
RUDP
b)
An Unstable 6 Carbon Molecule
c)
PGA
d)
2 3-carbon molecules
10.
The 5-Carbon molecules that the Calvin Cycle starts and ends with, is called _____________.
a)
PGA
b)
G3P
c)
RuBP
d)
RuDp
11.
After 12 G3P molecules are created, 10 are used to regenerate _________, while the other 2 are used to create __________.
a)
RuBP, C6H12O6
b)
Glucose, CO2
c)
ATP, Glucose
d)
Glucose, RUBP
12.

Which enzyme joins CO2 and RuBP?

a)

NADP+ reductase

b)

RUBISCO

c)

ATP synthase

d)

none of the above

13.
How many carbons does G3P have?
a)
1
b)
2
c)
3
d)
6
14.
The two main stages of photosynthesis are the
a)
light reactions and respiration
b)
dark reactions and the Calvin cycle 
c)
light reactions and the Calvin cycle
d)
dark reactions and fermentation
15.

The light-independent reactions of photosynthesis are collectively known as the [?]

(a)  

16.

Which of the following happens to Glycerate Phosphate to make Triose Phosphate?

a)

Reduction

b)

Oxidation

c)

Phosphorylation

d)

Photolysis

17.

Main products of the Calvin Cycle

a)

Oxygen, NADP+, ADP

b)

Glucose, CO2, ADP

c)

ADP, NADP+, Glucose

d)

ATP, NADPH, Oxygen

18.

The six carbon sugar initially made in the Calvin Cycle is unstable and breaks into two molecules of

a)

ATP

b)

G3P

c)

RuBP

d)

3-PGA

19.
What does carbon combine with to form glucose? 
a)
NADPH
b)
ATP
c)
RuBP
d)
G3P
20.
How many G3P molecules make one molecule of glucose? 
a)
1
b)
2
c)
3
d)
4
21.
What is the product of the Calvin Cycle?
a)
Rubisco
b)
Glyceraldehyde 3-Phosphate (G3P)
c)
Oxygen
d)
Starch
22.
Which enzyme joins CO2 and RuBP?
a)
NADP+ reductase
b)
rubisco
c)
ATP synthase
23.

The stroma is found

a)

on the underside of leaves

b)

within the chloroplast

c)

in animal cells

d)

inside the thylakoids

24.

Calvin cycle is sometimes called the light-independent reactions because

a)

light is not required for the Calvin cycle to move forward

b)

light is required

c)

it is something animal cells do

d)

green light is absorbed during this step

25.

5 carbon sugar that combines with CO2 in the Calvin Cycle

a)

3-PGA

b)

G3P

c)

RuBP

d)

Glucose

26.

The six carbon sugar initially made in the Calvin Cycle is unstable and breaks into two molecules of

a)

ATP

b)

G3P

c)

RuBP

d)

3-PGA

27.
What is the final product made during the light independent reactions?
a)
ATP
b)
NADPH
c)
sugar
d)
fat
28.

Leaves look green because.....

a)

they eat their vegetables

b)

to blend into their environment

c)

they contain xanthophils

d)

they absorb red and blue

29.

Q. In the Calvin Cycle, ________ and ________ from the light dependent reactions convert PGA into G3P

a)

O2, ATP

b)

CO2, H2

c)

ADP, NADPH

d)

NADPH, ATP

30.

Set of reactions in photosynthesis that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar; also called the Calvin Cycle

a)

Light-dependent

b)

Light-independent

c)

Electron transport chain

d)

ATP synthase