Glutamate, Glutamine Biosynthesis

What are the two most important amino acids discussed in the text?

Explain the role of glutamate in nitrogen transfer.

Describe how glutamine is synthesized from glutamate.

What is the significance of glial cells in relation to glutamine and neurotransmission?

Discuss the importance of glutamine in muscle metabolism.

How does the regulation of glutamine synthetase relate to ammonia toxicity?

What are the main waste products of metabolism mentioned in the text?