Substrate level phosphorylation occurs in the citric acid cycle when Succinyl CoA is converted to Succinate.Which of the following statements about this event is true?
A)Inorganic phosphate is added to ADP by HS-CoA thereby creating ATP.
B)Inorganic phosphate is used to create GTP.GTP then donates a phosphate group to ADP to create ATP.
C)A phosphate group is removed from HS-CoA and is donated to GDP to form GTP.GTP then donates a phosphate group to ADP to create ATP.

Question

Quizplus · Accepted Answer

In substrate-level phosphorylation, a phosphate group is transferred from a substrate molecule to ADP to create ATP. In the citric acid cycle, the conversion of succinyl CoA to succinate produces GTP, which then donates a phosphate group to ADP to form ATP. Therefore, option B is the correct statement about this event. Option A is incorrect because HS-CoA does not add phosphate to ADP. Option C is incorrect because HS-CoA does not donate a phosphate group to GDP.

Substrate Level Phosphorylation Occurs in the Citric Acid Cycle When