Multiple Choice
The two nitrogens in urea arise directly from:
A) Ammonia and aspartic acid.
B) Carbamoyl phosphate and aspartic acid.
C) Carbamoyl phosphate and glutamic acid.
D) Ammonia and glutamic acid.
E) Carbamoyl phosphate and glutamine.
Correct Answer:

Verified
Correct Answer:
Verified
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Q3: Nitrogenase uses which of the following cofactors?<br>A)
Q4: In animals, the synthesis of cysteine involves
Q5: How many ATP equivalents are required to
Q6: How many electrons are required for the
Q7: The sulfur group in cysteine arises from
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