Answer
D
Work Step by Step
Amino acids are utilized to form hormones, antibodies, plasma proteins, clotting factors and nucleic acid. They are also involved in cellular repair, immune response and to form blood cells. They are converted to keto acid in liver and utilized in Krebs cycle to generate ATP for energy purpose. Protein is needed for body growth and maintenance. It forms the structural component of all cells in the body, especially muscle. Proteins are also used as glycoproteins in membranes.
Only glucose is used as a quick energy source.
