The TCA cycle and glyoxylate cycle are similar in many respects.Which of the following statements accurately describes these cycles?

Question

Quizplus · Accepted Answer

The statement that accurately describes both cycles is that "In the glyoxylate cycle, two acetyl CoA molecules are used to generate succinate." This is because both the TCA cycle and the glyoxylate cycle start with the breakdown of acetyl CoA and utilize a series of reactions to generate energy intermediates. In the TCA cycle, the intermediates are used for further energy production, while in the glyoxylate cycle, they are used for biosynthesis. However, the key difference between the two cycles is that the TCA cycle generates CO2 as a byproduct through a series of decarboxylating reactions, while the glyoxylate cycle has only a single decarboxylation step. Additionally, the glyoxylate cycle is used by some organisms to bypass the decarboxylation steps of the TCA cycle in order to synthesize carbohydrates from acetyl CoA.

The TCA Cycle and Glyoxylate Cycle Are Similar in Many