Question

the table lists several amino acids and their elemental compositions. which organic molecules serve as raw materials for the synthesis of these amino acids? vitamins carbohydrates nucleic acids fatty acids amino acid alanine valine cysteine methionine elements c, h, o, and n c, h, o, and n c, h, o, s, and n c, h, o, s, and n

Explanation:

Amino - acids are synthesized from carbon - containing organic molecules. Carbohydrates can be broken down and their carbon - skeletons can be used as raw materials for amino - acid synthesis. Vitamins are co - factors, fatty acids are for energy storage and membrane formation, and nucleic acids are for genetic information storage, not for direct amino - acid synthesis as a main raw material.

Answer:

C. carbohydrates