Question

Which of the amino acid is useful for the preparation of heme or guanine or creatine?

a) Methionine
b) Glycine
c) Arginine
d) Proline

Answer 1

Glycine is the amino acid useful for the preparation of heme, guanine, and creatine due to its role as a precursor in their synthesis.

Step-by-step explanation:

The amino acid useful for the preparation of heme, guanine, or creatine is glycine. Glycine is involved in the synthesis of these compounds because of its simple structure, which allows it to be easily incorporated into larger molecules. For example, glycine is a precursor to heme, an essential component of hemoglobin and cytochromes, and it is also needed for the synthesis of creatine, which is vital for energy storage and supply in muscle and nerve tissues. Guanine, a component of DNA and RNA, can also be synthesized from glycine's intermediate.