Which of the following is true about a person who consumes more dietary proteins?

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He excretes more urea since urea production is linked to protein metabolism.

He excretes less urea since urea excretion is inversely proportional to protein consumption.

He does not excrete urea, since urea is consumed during protein metabolism.

Urea excretion remains unaffected since protein consumption has no impact on urea production.

answer is A.

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Detailed Solution

When an individual consumes dietary proteins, the body breaks them down into amino acids. Amino acids undergo deamination in the liver, leading to the formation of ammonia. The liver then converts ammonia into urea, which is excreted through the kidneys. Therefore, a higher intake of dietary proteins results in an increased production of urea as the body processes the excess nitrogen from amino acids.

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