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Protein diet & urea production

There is a past question for Edexcel Biology unit 4 (core section) with different levels of protein in the blood and their corresponding urea volumes. The higher the protein level in blood, the more urea is excreted and I don't know why. I would have thought more water would be reabsorbed with higher protein levels due to higher rates of osmosis?

Could anyone help please? :smile:

Reply 1

Revd. Mike

Urea is formed from deamination of amino acids, which make up protein. So higher protein intake means more amino acids to be deaminated, more urea is produced.

Reply 2

Danielisew

Revd. Mike

Urea is formed from deamination of amino acids, which make up protein. So higher protein intake means more amino acids to be deaminated, more urea is produced.