Not all amino acids need to be supplied through dietary sources because _____ breaks down old and unneeded proteins into their component amino acids and then recycles them to make new proteins.
A) nitrogen equilibrium
B) protein turnover
C) nitrogen balance
D) deamination



Answer :

Answer:

The correct answer is:

B) **Protein turnover**

Protein turnover is the process where old and unneeded proteins are broken down into their component amino acids, which are then recycled to make new proteins. This process helps in ensuring that not all amino acids need to be supplied through dietary sources.