Question 1 (1 pts): Nitrogen fixation represents a process by which atmosphericn

Question

Question 1 (1 pts):
Nitrogen fixation represents a process by which atmosphericnitrogen oxidized to
make 2 ammonium ions.
a.) True
b.) False
Question 2 (1 pts):
Essential amino acids cannot be synthesized in sufficientquantities by the
human body.
a.) True
b.) False
Question 3 (1 pts):
Pyruvate is a precursor for production of alanine.
a.) True
b.) False
Question 4 (1 pts):
Which of the following molecules is nitrogen important forproduction of?
a.) sphingolipids
b.) nucleotides
c.) amino acids
d.) chitin
e.) none of the above

Explanation / Answer

1. False - Nitrogen fixation converts atmospheric N toammonia, not ammonium. 2. True - Essential amino acids cannot be synthesized insufficient quantities by the human body. 3. True - Pyruvate (glycolytic end product) --> alanine 4. Not sure on the last one, sorry. I know that nitrogenis a key component in all of those mentioned above, so I am notsure as to which to pick.

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