In TCA cycle or tricarboxylic acid cycle, which is first formed________________?

Related Mcqs:

1. In TCA cycle substrate level phosphorylation occurs at____________?

   A. Succinate dehydrogenase
   B. Malonate reduction
   C. Thiokinase
   D. None of the above

2. In TCA cycle, citrate is converted in to after losing a molecule of H2O_____________?

   A. Isocitrate
   B. Cisaconitate
   C. Oxalocetate
   D. Glutarate

3. Which metabolite of TCA cycle is used in detoxification of ammonia in brain_____________?

   A. Alpha ketoglutarate
   B. Ornithine
   C. Oxalocetate
   D. Glycine

4. Which acid is formed in the citric acid cycle ?

   A. Oxaloacetic acid
   B. Glutamic acid
   C. Nitric acid
   D. None of the above

5. In TCA, substrate level phospherylation takes place in______________?

   A. Alpha ketoglutrate to succinyl CoA
   B. Succinyl CoA to Succinate
   C. Succinate to fumarate
   D. Oxalocetate to citrate

6. What high energy phosphate compound is formed in the citric acid cycle through substrate level phosphorylation______________?

   A. ATP
   B. TTP
   C. ITP
   D. GTP

7. Which one of the following enzymes provides a link between glycolysis and the citric acid cycle ?

   A. Lactate dehydrogenase
   B. Pyruvate kinase
   C. Citrate synthase
   D. Pyruvate dehydrogenase

8. The citric acid cycle is the final pathway for oxidation of______________?

   A. Enzymes
   B. Vitamins
   C. Minerals
   D. None of the above

9. Enzymes concerned with the citric acid cycle are found in the____________?

   A. Nucleus
   B. Ribosomes
   C. Mitochondria
   D. Nonparticulate cytoplasm

10. Enzymes concerned with the citric acid cycle are found in______________?

    A. Nucleus
    B. Mitochondria
    C. Ribosomes
    D. Non-particulate cytoplasm