Figure 9.2 The citric acid cycle.
-If pyruvate oxidation is blocked, what will happen to the levels of oxaloacetate and citric acid in the citric acid cycle shown in Figure 9.2?
A) There will be no change in the levels of oxaloacetate and citric acid.
B) Oxaloacetate will decrease and citric acid will accumulate.
C) Oxaloacetate will accumulate and citric acid will decrease.
D) Both oxaloacetate and citric acid will decrease.
E) Both oxaloacetate and citric acid will accumulate.

Question

Figure 9.2 The citric acid cycle.
-If pyruvate oxidation is blocked, what will happen to the levels of oxaloacetate and citric acid in the citric acid cycle shown in Figure 9.2?
A) There will be no change in the levels of oxaloacetate and citric acid. 
B) Oxaloacetate will decrease and citric acid will accumulate. 
C) Oxaloacetate will accumulate and citric acid will decrease. 
D) Both oxaloacetate and citric acid will decrease. 
E) Both oxaloacetate and citric acid will accumulate.

Quizplus · Accepted Answer

If pyruvate oxidation is blocked, then the citric acid cycle cannot proceed and oxaloacetate cannot be converted into citric acid. This means that oxaloacetate will accumulate, and there will be a decrease in the levels of citric acid.

Figure 9.2 the Citric Acid Cycle