In metabolic pathways, amino acids can be utilized in energy production. Which of the following is true regarding their metabolism?

Amino acids play a crucial role in various metabolic pathways, and their ability to be converted into energy-producing intermediates is a key aspect of their metabolism. When amino acids are catabolized, they undergo deamination, where the amino group is removed, leading to the formation of ammonia and a corresponding keto acid. The resulting keto acids can enter the citric acid cycle (also known as the Krebs cycle) at multiple points, depending on the specific amino acid.

This process allows amino acids to contribute to the production of ATP, which is the energy currency of cells. Some amino acids are converted into pyruvate, acetyl-CoA, or other intermediates that can be further processed to generate energy through aerobic oxidation or can also be utilized in gluconeogenesis for glucose production. Therefore, the statement that amino acids can be converted into energy-producing intermediates accurately reflects their metabolic versatility beyond just serving as building blocks for proteins.

Understanding this function of amino acids in energy metabolism is essential because it illustrates the dynamic nature of metabolism where nutrients have multiple roles, including supporting energy needs in addition to their roles in protein synthesis and other cellular functions.