Multiple Choice
ATP is synthesized by substrate-level phosphorylation during which of the following processes?
658
views
8. Respiration
Types of Phosphorylation
Multiple Choice
Which type of phosphorylation synthesizes ATP using an enzyme that transfers a phosphate group to ADP?
A
Adaptive Phosphorylation.
B
Oxidative Phosphorylation.
C
Substrate-level Phosphorylation.
D
Product-level Phosphorylation.
Verified step by step guidance1
Understand the process of ATP synthesis: ATP (adenosine triphosphate) is synthesized by adding a phosphate group to ADP (adenosine diphosphate). This process can occur through different mechanisms.
Identify the types of phosphorylation: There are several types of phosphorylation processes, including substrate-level phosphorylation, oxidative phosphorylation, and others.
Define substrate-level phosphorylation: This is a type of phosphorylation where an enzyme directly transfers a phosphate group from a substrate molecule to ADP, forming ATP. It occurs in the cytoplasm during glycolysis and in the mitochondria during the Krebs cycle.
Differentiate from oxidative phosphorylation: Oxidative phosphorylation involves the electron transport chain and chemiosmosis, where ATP is synthesized using energy derived from the transfer of electrons in the mitochondria.
Conclude with the correct type: Based on the definition, substrate-level phosphorylation is the process where an enzyme directly transfers a phosphate group to ADP to synthesize ATP.
Related Videos
Related Practice
