McGraw-Hill Online Learning Center Test<BLURT>

McGraw-Hill Online Learning Center Test


1. Review the animation and answer the following questions.

Plants absorb nitrate from the soil to produce all of the following EXCEPT

A. amino acids.
B. proteins.
C. phospholipids.
D. nucleotides.


2. Nitrogen-fixing bacteria have the ability to A. convert atmospheric nitrogen gas (N2) into ammonia (NH4+).
B. convert atmospheric nitrogen gas (N2) into nitrite (NO2-).
C. convert atmospheric nitrogen gas (N2) into nitrate (NO3-).
D. convert nitrate (NO3-) into nitrogen gas (N2).


3. Nitrogen is returned to the atmosphere by the action of A. nitrogen-fixing bacteria.
B. nitrifying bacteria.
C. decomposers.
D. denitrifying bacteria.
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