Which of the following is correct of the pyruvate dehydrogenase enzyme complex ?

Related Mcqs:

1. Dehydrogenase used as coenzymes all of the following, except________________?

   A. FMN
   B. FAD
   C. NADP+
   D. Ferro protoporphyrin

2. Lactate dehydrogenase is____________?

   A. Isozyme
   B. Coenzyme
   C. Antienzyme
   D. Zymogen

3. Increase in pyruvate and lactate is seen in which of the following deficiency ?

   A. Thiamine
   B. Pyridoxine
   C. Niacin
   D. Vitamin C

4. Increase in lactate and pyruvate is seen in deficiency of_____________?

   A. Pyridoxin
   B. Niacin
   C. Thiamine
   D. Retinotic acid

5. 1 molelcule of glucose forms _______ molecules of pyruvate?

   A. 1
   B. 2
   C. 3
   D. 4

6. The activity of the following enzyme is affected by biotin deficiency____________?

   A. Transketolase
   B. Dehydrogenase
   C. Oxidase
   D. Carboxylase

7. Which of the following is a membrane bound enzyme that catalyzes the formation of cyclic AMP from ATP ?

   A. Tyrosine kinase
   B. Polymerase
   C. ATP synthase
   D. Adenylate cyclase

8. Vitamin B12 acts as a coenzyme to which one of the following enzyme ?

   A. Isocitrate dehydrogenase
   B. Homocyteine methyl transferase
   C. Glycogen synthase
   D. G-6-P dehydrogenase

9. Km of an enzyme is_____________?

   A. Dissociation constant
   B. The normal physiological substrate concentration
   C. Substrate concentration at half maximal velocity
   D. Numerically identical for all isozymes that catalyses a given reaction

10. The enzyme phosphofructo kinase-1 is strongly activated by_______________?

    A. Cyclic AMP
    B. Adenosine tri phosphate
    C. Citrate
    D. Fructose 2,6 bis phosphate