Enzyme + coenzyme constitutes_____________?

Related Mcqs:

1. 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

2. Coenzyme responsible for single carbon transfer is______________?

   A. Acetyl co enzyme A
   B. Biotin
   C. THF4
   D. Pyridoxine

3. Coenzyme, in an enzymatic reaction usually functions to_____________?

   A. Activate the substrate
   B. Increase the active sites of apoenzyme
   C. Enhance the specificity of apoenzyme
   D. Accept one of the cleavage products

4. Coenzyme forms are correctly matched except_____________?

   A. Biotin – carboxylated biotin
   B. Vitamin B – ATP
   C. Niacin – NAD+NADP
   D. Vitamin B2 – FMN+FAC

5. Coenzyme A contains which of the following vitamins_______________?

   A. Biotin
   B. Pyridoxine
   C. Pantothenic acid
   D. Niacin

6. Which of the following enzymes use NADP as coenzyme ________________?

   A. Glyceraldehyde 3 phosphate dehydrogenase
   B. Lactate dehydrogenase
   C. Glucose 6-Phosphate dehydrogenase
   D. Beta hydroxy acyl CoA dehydrogenase

7. Fraction of CPK is an enzyme that is elevated in a myocardial infarct is____________________?

   A. MM fraction
   B. MB fraction
   C. BB fraction
   D. Both MM and BB fraction

8. The most common enzyme deficiency in man is___________?

   A. Glucose 6 phosphate dehydrogenase
   B. Glucose 6 phosphatase
   C. Hexokinase
   D. Glucose 1,6 diphosphatase

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

   A. It is present in cytoplasm
   B. Catalyzes the conversion of pyruvate to oxaloacetate
   C. Requires TPP as cofactor
   D. Catalyzes a reversible reaction

10. 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