Chapter 4:
Autotropy: Collecting Energy from the Nonliving Environment
Practice Test
1.
What is the pigment that plants depend upon for photosynthesis?
a.
NADPH
b.
rhodopsin
c.
ATP
d.
chlorophyll
Hint
2.
What happens to the rate of photosynthesis in maximum light if the temperature increases?
a.
It decreases.
b.
It is not affected.
c.
It stays the same.
d.
It increases.
Hint
3.
What are organisms that depend on photosynthesis for energy and carbon compounds?
a.
photoautotrophs
b.
consumers
c.
chemoautotrophs
d.
heterotrophs
Hint
4.
Energy from the Sun forms a continuous series of waves called ______________ .
a.
ultraviolet light
b.
a pigment
c.
a specturm
d.
a rainbow
Hint
5.
What are the membranes in plant cells that contain the pigments needed for photosynthesis?
a.
thylakoids
b.
cuticles
c.
guard cells
d.
stomates
Hint
6.
As the amount of carbon dioxide increases, what is the overall effect on photosynthesis?
a.
The rate of photosynthesis increases up to a maximum point, then it levels off.
b.
The rate of photosynthesis continues to increase with increasing amounts of carbon dioxide.
c.
The rate of photosynthesis decreases with increasing amounts of carbon dioxide.
d.
The rate of photosynthesis increases, then decreases.
Hint
7.
Within a chloroplast, the space surrounding the thylakoids is called the ________ .
a.
grana
b.
stroma
c.
cuticle
d.
stoma
Hint
8.
What is the most limiting factor for photoautotrophs in surface waters of the ocean?
a.
temperatures too extreme
b.
availability of carbon dioxide
c.
availability of nutrients
d.
amount of sunlight
Hint
9.
As temperature increases, what is the overall effect on photosynthesis?
a.
The rate of photosynthesis continues to increase with increasing temperatures.
b.
The rate of photosynthesis increases, then declines.
c.
There is no overall effect because temperature is not a limiting factor in photosynthesis.
d.
The rate of photosynthesis decreases with increasing temperatures.
Hint
10.
What are light-absorbing substances in the cells of photoautotrophs?
a.
wavelengths
b.
sugars
c.
stomates
d.
pigments
Hint
