Download The Nitrogen Cycle Quiz

The Nitrogen Cycle Quiz
1. True or False: Nitrogen is important for creating both proteins and
carbohydrates.
2. True or False: Most plants and animals cannot use the nitrogen in
nitrogen gas.
3. What is nitrogen fixation?
4. What can bean plants do that most other plants can't?
5. How do animals obtain nitrogen?
6. The initial step of producing a nitrogen containing compound from
nitrogen in the soil is
a) assimilation.
b) ammonification.
c) nitrification.
d) denitrification.
7. The final step of releasing nitrogen gas back into the atmosphere is
a) assimilation.
b) ammonification.
c) nitrification.
d) denitrification.
8. Nitrogen gas is two nitrogen atoms held together by
a) a very strong single bond.
b) a very strong double bond.
c) a very strong triple bond.
d) a nitrogen bond.
9. Nitrogen enters the roots of plants in a process called
a) assimilation.
b) ammonification.
c) nitrogen fixation.
d) nitrification.
10. What bacteria live in the root nodules of legumes?
a) denitrifying bacteria
b) nitrifying bacteria
c) nitrogen-fixing bacteria
d) all of the above