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Photosynthesis Practice

Total questions: 16

Worksheet time: 10mins

Name
Class
Date
1.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
2.

The pancake like structure where the light-dependent reactions occur:

a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoid
3.

The interior space of the chloroplast where the light-independent reactions occur is called:

a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoids
4.

Which of the following equations represents the overall chemical reaction for photosynthesis?

a)

6O2+ 6H2O → C6H12O6+ 6O2

b)

C6H12O6 + 6H2O→ 6O2+ 6O2

c)

6CO2+ 6H2O→ C6H12O6+ 6O2

d)

6O2 + 6H2O→ C6H12O6 + 6CO2

5.

Connecting ideas: There are enzymes that help with chemical reactions during photosynthesis. Temperatures that are too high can slow photosynthesis because

a)

stomata stay open

b)

enzymes are ruined

c)

there is not enough CO2

d)

there is too much water

6.

What are the two products of the light reactions that are needed for the Calvin Cycle (Light-Independent Reactions)?

a)
NAD and NADPH
b)
NADP + and Glucose
c)
NADPH and ATP
d)
Oxygen and NADPH
7.

Connecting ideas: Glucose is a ...

a)
sugar
b)
carbohydrate
c)
source of quick energy
d)
all are correct
8.

What are the inputs of the Calvin Cycle (Light-Independent Reactions)?

a)

NADPH

b)

ATP

c)

CO2

d)

H2O

e)

chlorophyll

9.

The molecule that is the cell's primary form of energy?

a)

Glucose

b)

ATP

c)

ADP

d)

Carbohydrates

10.

Which of the following is NOT a product of the Light-Dependent Reactions?

a)
ATP
b)
NADPH
c)
Oxygen
d)
Glucose
11.

Autotrophs (producers) can perform photosynthesis because they have -

a)

Mitochondria

b)

Ribosomes

c)

A Nucleus

d)

Chloroplasts

12.

What are the reactants of photosynthesis?

a)
oxygen and carbon dioxide
b)
oxygen and glucose
c)
carbon dioxide and water
d)
water and glucose
13.
What are the products of photosynthesis?
a)
oxygen and carbon dioxide
b)
oxygen and glucose
c)
carbon dioxide and water
d)
water and glucose
14.
What is the chemical formula for glucose?
a)
C6H12O6
b)
C6H6O12
c)
C12H6O12
d)
C6O2H6
15.

Connecting Ideas: Which of these conditions would decrease the rate of photosynthesis in a plant?

a)
Above average precipitation
b)
Changing the daylight hours from 14 hrs to 10 hrs
c)
Changing the CO2 concentration from 380 ppm to 410 ppm
d)
All of these choices
16.

Connecting Ideas: If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars (rate of photosynthesis)?

a)
Sugar production will likely increase.
b)
Sugars will not be produced.
c)
The rate of sugar production will decrease .
d)
Fewer sugars will be produced at first, but then the plant will recover.