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Photosynthesis Phases

Total questions: 25

Worksheet time: 43mins

Name
Class
Date
1.
The stacks of disks in the chloroplast are called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoid
2.
The disks in the chloroplast are called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoids
3.
The interior space of the chloroplast is called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoids
4.

What is the function of NADPH and ATP?

a)

They absorb light

b)

They power the light reactions

c)

They are light-reflecting pigments

d)

They are short term energy carriers

5.
Where do the light-dependent reactions occur? 
a)
thylakoid membrane
b)
stroma
c)
mesophyll
d)
mitochondria
6.
Which of the following is NOT a product of the light-dependent reactions?
a)
ATP
b)
NADPH
c)
Oxygen
d)
Glucose
7.

What is the primary function of the light reactions of photosynthesis?

a)

To produce glucose

b)

To produce NADPH and ATP

c)

To use ATP

d)

To produce RuBP

8.

What is the purpose of the Calvin cycle?

a)

To produce ATP and NADPH (long-term energy storage)

b)

To produce sugars (long-term energy storage)

c)

To produce ATP and NADPH (short-term energy storage)

d)

To produce sugars (short-term energy storage)

9.
How many sugar molecules are produced from every six molecules of carbon dioxide that enter the Calvin cycle?
a)
1
b)
3
c)
6
d)
12
10.

Which product is produced during the light reactions?

a)

water

b)

oxygen

c)

glucose

d)

carbon dioxide

11.
A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably ________.
a)
oxygen
b)
carbon dioxide
c)
ATP
d)
glucose
12.
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
13.
In green plants, the primary function of the Calvin cycle is to
a)
Use ATP to release carbon
b)
Split water to release oxygen.
c)
Construct simple sugars from carbon dioxide.
d)
Use NADPH to release carbon
14.

What does ATP synthase do?

a)

Create ATP

b)

Break down ATP

c)

Break down NADPH.

d)

Create NADPH.

15.

What is the source of electrons for the light reactions?

a)

splitting water

b)

splitting carbon dioxide

c)

splitting oxygen

d)

splitting glucose

16.

Splitting water to get electrons for the light reactions produces _______________ as a byproduct

a)

oxygen

b)

more water

c)

glucose

d)

carbon dioxide

17.

What goes at letter A?

a)

light

b)

light reactions

c)

Calvin cycle

d)

photosynthesis

18.

What goes at letter K?

a)

oxygen

b)

water

c)

carbon dioxide

d)

sugars

19.

What goes at letter C?

a)

oxygen

b)

water

c)

carbon dioxide

d)

sugars

20.

What goes at letter B?

a)

oxygen

b)

water

c)

carbon dioxide

d)

sugars

21.

What goes at letter L?

a)

oxygen

b)

water

c)

carbon dioxide

d)

sugars

22.

Which photosystem is the first in a plants electron transport chain?

a)

PS 1

b)

PS 2

c)

PS 3

d)

PS 4

23.

What color is BEST for photosynthesis?

a)

green

b)

blue

c)

orange

d)

red

24.

What color is WORST for photosynthesis?

a)

Red

b)

Blue

c)

Yellow

d)

Green

25.

Which of these is a HETEROTROPH?

a)

Whale

b)

Watermelon

c)

Algae

d)

Pine Tree

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