When carbohydrate supplies are depleted in cells, amino acids from proteins can enter aerobic respiration after nitrogen is removed from the amino acids and excreted.
Before proteins from food can be utilized by your cells, your body must first break them down into amino acids.
Some amino acids will be broken down for energy through cellular respiration if there are more amino acids than the body requires or if cells are starved.
Amino acids must first have their amino group removed in order to enter cellular respiration.
As a waste product from this process, ammonia is produced. In mammals like humans, the ammonia is transformed to urea and eliminated from the body through urine.
Different amino acids enter the cellular respiration pathways at various stages after being deaminated.
Hence, when carbohydrate supplies are depleted in cells, amino acids from proteins can enter aerobic respiration after nitrogen is removed from the amino acids and excreted.
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