Nitrogen Cycle

Flashcard
•
Science
•
10th - 12th Grade
•
Hard
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17 questions
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1.
FLASHCARD QUESTION
Front
Which nitrogen cycle process is occurring when plant roots absorb ammonium ions and nitrate ions for use in making molecules such as DNA, amino acids, and proteins?
Back
assimilation
2.
FLASHCARD QUESTION
Front
Which nitrogen cycle process is occurring when bacteria convert ammonium to nitrite and then into nitrate?
Back
nitrification
3.
FLASHCARD QUESTION
Front
Which of these correctly shows the reservoirs where most of Earth's carbon atoms and nitrogen atoms are residing at any given time?
Back
4.
FLASHCARD QUESTION
Front
Which nitrogen cycle process is occurring when nitrogen in plant or animal protein is converted to ammonium? Options: nitrogen fixation, nitrification, denitrification, ammonification, assimilation
Back
ammonification
5.
FLASHCARD QUESTION
Front
Nitrogen molecules present in the atmosphere: NH3, NH4+, NO3-, N2
Back
N2
6.
FLASHCARD QUESTION
Front
Which nitrogen cycle process converts atmospheric nitrogen to a soil form usable by plants?
Back
nitrogen fixation
7.
FLASHCARD QUESTION
Front
What nitrogen cycle process takes place when deciduous trees shed their leaves and specialized soil bacteria consume the leaf material for energy, returning some of the leaf nitrogen to the soil?
Back
ammonification
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