BBC5 年
Homeostasis in humans - Edexcel Maintaining nitrogen balance in the body – Higher
In the liver, ammonia is formed by the deamination of amino acids. It is highly toxic and cannot be allowed to accumulate in the body. Excess ammonia is converted to urea. Urea and water are ...
BBC4 年
Homeostasis in humans - AQAMaintaining nitrogen balance in the body - Higher
In the liver ammonia is formed by the deamination of amino acids. It is highly toxic and cannot be allowed to accumulate in the body. Excess ammonia is converted to urea. Urea and water are ...