The interorgan pathway that allows transport of nitrogen from muscle to the liver utilizes ____ as an amino group acceptor in the transamination reaction generating _____.

Question

Quizplus · Accepted Answer

The interorgan pathway that allows transport of nitrogen from muscle to the liver is known as the glucose-alanine cycle. In this cycle, pyruvate acts as an amino group acceptor in the transamination reaction generating alanine. The alanine is then transported to the liver where it undergoes transamination to generate pyruvate and glutamate. Thus, the correct answer is pyruvate as the amino group acceptor in the muscle, and alanine as the amino acid being transported. The only option that matches this criteria is E, pyruvate as the acceptor and alanine as the product.

The Interorgan Pathway That Allows Transport of Nitrogen from Muscle