Question

We are growing bacteria using media containing proteins ONLY. Explain whether the bacteria can meet its needs for other types of organic molecules when grown in this media 3pts.

Answer 1

Bacteria can meet its need for other type of organic molecules using proteins as carbon source. First proteins will be hydrolyzed into individual amino acids.

By amino acid metabolism pathway, different amino acids can be converted into different important molecules of TCA cycle such as pyruvate, acetyl Co-A, alpha-ketogluglutarate, succinyl Co-A, Fumarate, and oxaloacitate. So TCA cycle will be occurred after amino acid metabolism, and ATPs will be Produced. Nucleotides will be synthesized from the well known precursor (for nucleotide synthesis) glutamine. Proteins will be synthesized from derives amino acids.