The direct formation of ATP by the transfer of a phosphate group from a donor molecule to ADP is called ________.

Question

Quizplus · Accepted Answer

Substrate-level phosphorylation is the direct transfer of a phosphate group from a donor molecule to ADP resulting in the formation of ATP. This process occurs during glycolysis and the Krebs cycle in cellular respiration, and during substrate-level phosphorylation in photosynthesis. Oxidative phosphorylation involves the transfer of electrons through the electron transport chain to create a proton gradient for ATP synthesis, while cyclic and noncyclic photophosphorylation occur during photosynthesis and involve the use of light energy to create a proton gradient for ATP synthesis. Indigenous phosphorylation is not a commonly used term in biochemistry.

The Direct Formation of ATP by the Transfer of a Phosphate