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Bio 20. Im studying for my bio final and i need help on this question.?
Nitrogen-deficient plants present a problem for healthy food webs because animals then will lack nitrogen. Nitrogen is important for all animals because
Select one:
a. they need it to build structures of protein and to make genetic molecules (DNA)
b. bacteria in their stomach use it for ammonification
c. it is a major component of bones and teeth
d. it is the main energy source for movement and cell processes
1 Answer
- 2 years ago
a. Proteins are made of amino acids which have nitrogen-containing amine (NH2) groups. DNA molecules contain the nucleobases cytosine, adenine, guanine and thymine, all of which contain nitrogen.