Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Nitrogen Cycle
Test Description: Identify the processes in the nitrogen cycle.
Instructions: Answer all questions to get your test result.
1) Which is the largest nitrogen sink?
A
biotic components
B
water systems
C
rocks
D
atmosphere
2) What do plants do with fixed nitrogen?
A
They assimilate it.
B
They ammonify it.
C
They can't use it.
D
They nitrify it.
3) Which is created during nitrogen fixation by biotic processes?
A
N2, nitrogen
B
NO3-, nitrate
C
NH3, ammonia
D
NH4+, ammonium
4) During nitrification, bacteria convert ________ into ________.
A
N2 N2O or nitrogen into nitrous oxide
B
N2O N2 or nitrous oxide into nitrogen
C
NO3- NH4+ or nitrates into ammonium
D
NH4+ NO3- or ammonium into nitrates
5) Which step is not performed by bacteria?
A
denitrification
B
assimilation
C
nitrogen fixation
D
ammonification
6) Which step returns nitrogen back to the atmosphere?
A
nitrification
B
ammonification
C
denitrification
D
nitrogen fixation
7) In the process of converting NH4+ to NO3-, the intermediate molecule is ____
A
nitrite, NO2-
B
nitrogen, N2
C
nitrous oxide, N2O
D
ammonia, NH3
8) Nitrogen makes up _______ of the atmosphere.
A
23%
B
78%
C
45%
D
64%
9) Nitrogen is considered a limiting nutrient because
A
it's so difficult to break the nitrogen triple bond and make it available for plants.
B
It is easily leached out of the soil into the ground water which it pollutes.
C
Plants are mostly made of nitrogen and therefore need lots of it.
D
It stays suspended in the atmosphere and can't get to the roots.
10) The sequence of the nitrogen cycle is _
A
assimilation, fixation, ammonification, nitrification, denitirification
B
nitrification, assimilation, fixation, denitrification, ammonification
C
fixation, assimilation, ammonification, nitrification, denitrification
D
fixation, ammonification, assimilation, denitrification, nitrification
11) Which molecule(s) is(are) created during denitrification?
A
ammonia
B
ammonium
C
nitrogen
D
nitrates
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?