Ecosystems
Unit 3: Exchange Cycles
Post-Test
Teachers’ Edition
1.
As a result of photosynthesis, the oxygen in carbon dioxide is
. (Objective 2; answer – C)
A.
B.
C.
D.
E.
2.
Photosynthesis is powered by
A.
B.
C.
D.
E.
3.
. (Objective 1; answer – B)
volcanoes
dead plants
hot springs
melted rocks
fossils
Compost adds
A.
B.
C.
D.
E.
. (Objective 2; answer – D)
heat
glucose
oxygen
sunlight
water
Oil is formed from
A.
B.
C.
D.
E.
4.
converted to water
released into the atmosphere
used to make glucose
destroyed by sunlight
unchanged
to the soil. (Objective 3; answer – C)
energy
glucose
nutrients
oxygen
hydrogen
5.
Oxygen, released from plants during photosynthesis, comes from
(Objective 2; answer – E)
A.
B.
C.
D.
E.
carbon dioxide
glucose
the air
nitrogen
water
.
6.
A form of oxygen that is in the stratosphere and protects the Earth from ultraviolet
radiation is
. (Objective 1; answer – D)
A.
B.
C.
D.
E.
7.
Water is able to participate in all exchange cycles because of energy from
. (Objective 1; answer – D)
A.
B.
C.
D.
E.
8.
oxygen - result
water - ingredient
water - result
carbon dioxide - result
sunlight - ingredient
If you put plants in a closed (airtight) container and provided them with soil, light,
nutrients, water, and carbon dioxide, you would find that the amount of
in the container would increase. (Objective 2; answer – D)
A.
B.
C.
D.
E.
10.
fire
lightening
the oceans
the sun
steam
Which component of photosynthesis is not correctly matched with its role, either
being an ingredient (substrate) or a result (product)? Objective 2; answer – D)
A.
B.
C.
D.
E.
9.
carbon dioxide
nitrous oxide
oxide
ozone
peroxide
carbon dioxide
hydrogen
nitrogen
oxygen
water
Agricultural practices and car exhaust both directly upset the
exchange cycle. (Objective 3; answer – C)
A.
B.
C.
D.
E.
carbon
hydrogen
nitrogen
oxygen
water
11.
Excess carbon dioxide in the atmosphere would result in
answer – B)
A.
B.
C.
D.
E.
12.
overgrowth of plants
increased environmental temperatures
rapid aging of compounds due to rust formation
decreased availability of oxygen
increased nitrate production
Acid rain comes from
A.
B.
C.
D.
E.
. (Objective 1;
sulfates
nitrates and sulfates
nitrates and carbonates
carbonates
sulfates and carbonates
. (Objective 3; answer - B)