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2.9 Photosynthesis

Total questions: 21

Worksheet time: 14mins

Name
Class
Date
1.

Which pigments absorbs green and blue light but reflects orange and red light?

a)

Carotenoids

b)

Chlorophylls

2.
At approximately which wavelength does chlorophyll a absorb most light?
a)
660 nm
b)
640 nm
c)
455 nm
d)
425 nm
3.
Chlorophyll absorbs a higher percentage of _____ and _______ light.
a)
purple and green
b)
red and blue
c)
black and orange
d)
yellow and green
4.
This is called...
a)
an absorption spectrum
b)
an action spectrum
c)
a photosynthesis spectrum
d)
a photolysis spectrum
5.
Which of the pigments in found in chlorophyll is most efficient at lower wavelengths?
a)
Chlorophyll A
b)
Chlorophyll B
c)
Carotenoids
d)
All three are equally efficient
6.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

6CO2 + 6H2O → 6O2 + C6H12O6

b)

6CO2 + C6H12O6 + 6H2O → O2

c)

6O2 + 6H2O → 6CO2 + C6H12O6

d)

C6H12O6+ 6O2 → 6H2O + 6CO2

7.

Light energy is used to......

a)

split water into H and O

b)

fix C, H and O together

c)

warm plants up

d)

during the light independent reactions of photosynthesis

8.
If an aquatic plant is placed into a test tube with water near a light source, what will it produce?
a)
Glucose and Oxygen
b)
Carbon dioxide and ATP
c)
Water and Oxygen
d)
Glucose and ATP
9.
Energy is released from ATP when....
a)
a phosphate group is added
b)
photolysis occurs
c)
ATP is exposed to sunlight
d)
a phosphate group is removed
10.

What is produced by the photolysis of two water molecules?

a)

O2 + 4H+ + 4e-

b)

O2 + 4H+ + 2e-

c)

1/2 O2 + 2H+ + 2e-

d)

1/2 O2 + 2H+ + 4e-

11.

A leaf is green. What does this tell you about the light that is being absorbed?

a)

The light is a UV ray.

b)

The light is not a part of the light spectrum.

c)

All colors are reflected except green.

d)

All colors are absorbed except green

12.

What color is this pigment?

a)

Red

b)

Yellow

c)

Green

d)

Blue

13.

Which graph shows the limiting factor of Light Intensity on photosynthesis?

a)

A

b)

B

14.
How does temperature affect photosynthesis?
a)
Increases the rate at which enzymes work
b)
Gives the plant energy to perform photosynthesis
c)
Stops certain enzymes that interfere with photosynthesis working
15.
When it is chilly and raining outside, there is no photosynthesis taking place. What is the limiting factor?
a)
Temperature
b)
Rainfall
c)
Carbon Dioxide
16.
Which of these will not affect photosynthesis?
a)
Light
b)
Temperature
c)
Glucose Availability
d)
Carbon Dioxide
17.
Which of the following would have affect the rate of photosynthesis?
a)
amount of water
b)
carbon dioxide concentration
c)
temperature
d)
all of these
18.

Look at the diagram. Which gas would most likely be found in the greatest amount in the bubbles?
a)
oxygen
b)
nitrogen
c)
ozone
d)
carbon dioxide
19.
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
20.
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.
21.
Which conclusion best matches the trends shown on the graph?
a)
Bean plants produce more ATP than corn plants.
b)
Corn plants require more oxygen than bean plants.
c)
Corn plants release more carbon dioxide than bean plants.
d)
Corn plants produce sugars at a faster rate than bean plants.

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