The glucose-alanine cycle provides a mechanisms for ________ tissue to eliminate nitrogen and replenish its energy supply.

Question

Quizplus · Accepted Answer

The glucose-alanine cycle occurs between muscle and liver tissues. In this cycle, muscle tissue produces alanine from pyruvate and amino acids. Alanine is transported to the liver where it undergoes transamination to produce pyruvate and ammonia. The pyruvate can then be used in gluconeogenesis, while the ammonia is converted to urea and eliminated as waste. This allows muscle tissue to eliminate excess nitrogen and replenish its energy supply by providing the liver with substrates for gluconeogenesis. The kidney plays a role in nitrogen elimination through urine excretion, but it is not directly involved in the glucose-alanine cycle. The lung is not involved in this cycle.

The Glucose-Alanine Cycle Provides a Mechanisms for ________ Tissue to Eliminate