Plants use what form of nitrogen to make the building blocks for proteins and nucleic acids?
A)nitrogen gas
B)nucleic acids
C)ammonium
D)urea
E)nitrous oxide

Question

Plants use what form of nitrogen to make the building blocks for proteins and nucleic acids? ​
A)nitrogen gas
B)nucleic acids
C)ammonium
D)urea
E)nitrous oxide

Quizplus · Accepted Answer

Plants use ammonium (NH4+) to make the building blocks for proteins and nucleic acids. Nitrogen gas (N2) is not directly usable by plants and must be fixed by nitrogen-fixing bacteria or lightning. Nucleic acids are the building blocks of DNA and RNA, not the source of nitrogen for plants. Urea is a nitrogen-containing waste product and not used by plants as a source of nitrogen. Nitrous oxide (N2O) is a greenhouse gas produced by denitrifying bacteria in soil and not a form of nitrogen used by plants.

Plants Use What Form of Nitrogen to Make the Building