Correct Answer - C
Ans. is 'c' i.e., Decreasing protein synthesis [Ref Principles of
medical Biochemistry p. 464]
Nitrogen balance is the difference between ingested nitrogen and
excreted nitrogen.
Nitrogen balance = N ingested - N excreted
Because dietary proteins are an important source of nitrogen,
nitrogen balance is an important index of protein and amino acid
metabolism.
In healthy adults, nitrogen balance is zero, i.e. a state of nitrogen
equlibrium exists, where nitrogen intake is equal to nitrogen
excretion.
Negative nitrogen balance (excretion exceeds intake) in dietary
protein deficiency
In adult, even of protein starved, at least 30-40 gm of amino acids
are degraded each day; this amount defines the minimum dietary
requirment. If dietary supply drops below this limit, a negative
nitrogen balance occurs and the body protein is lost. Essential
amino acid deficiency has the same effect because relative
deficiency.

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