Question

Conversion of phosphoenol pyruvic acid to pyruvic acid and ADP to ATP are examples of

• A. substrate level phosphorylation
• B. photoelectric phosphorylation
• C. oxidative phosphorylation
• D. photophosphorylation

Answer 1

Answer: (A)

During formation of phosphoenol pyruvate, the phosphate radical picks up energy. It helps in the production of ATP by substrate level phosphorylation using pyruvate kinase enzyme.
$PEP+ADP\underset{\text{kinase}}{\overset{\text{ Pyruvate}}{\to }}$ Pyruvate + ATP