Nitrogen Cycle Review
Authored by Kristin Terrigno
Science
9th Grade
NGSS covered
Used 1+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nitrification
Nitrogen fixation
Denitrification
Ammonification
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary role of nitrifying bacteria in the nitrogen cycle?
Convert ammonia into nitrogen gas
Convert ammonia into nitrites and nitrates
Convert nitrates into ammonia
Fix atmospheric nitrogen
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Denitrification is an important process in ecosystems because it:
Converts ammonia into nitrites
Releases nitrogen gas back into the atmosphere
Fixes atmospheric nitrogen into organic compounds
Converts nitrates into ammonia
Tags
NGSS.MS-LS2-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of bacteria is primarily responsible for nitrogen fixation in the soil?
Nitrifying bacteria
Denitrifying bacteria
Nitrogen-fixing bacteria
Ammonifying bacteria
Tags
NGSS.MS-LS2-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a product of the denitrification process?
Tags
NGSS.MS-LS2-3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do nitrogen-fixing bacteria benefit plants?
By converting nitrates into ammonia
By converting atmospheric nitrogen into a form plants can use
By releasing nitrogen gas into the atmosphere
By decomposing organic matter
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following processes is essential for returning nitrogen to the atmosphere?
Nitrification
Nitrogen fixation
Denitrification
Ammonification
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