enzymes-regulation microbiology question and answers -Page first

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Enzymes Regulation problems

1. Protein portion of an enzyme when it is combined with organic molecule is termed as
Options
A. apoenzyme
B. co-enzyme
C. holoenzyme
D. co-factors

Discuss

Correct Answer: apoenzyme

2. Many enzymes consists of a protein combined with low molecular weight organic molecule called as
Options
A. apoenzyme
B. co-enzyme
C. holoenzyme
D. co-factors

Discuss

Correct Answer: co-enzyme

3. The inactive protein from of enzyme is
Options
A. apoenzyme
B. enzyme
C. haloenzyme
D. cofactor

Discuss

Correct Answer: apoenzyme

4. Who coined the word enzyme first?
Options
A. Kuhne
B. Pasteur
C. Liebig
D. Buchner

Discuss

Correct Answer: Kuhne

5. Isozymes or iso enzymes are those enzyme which
Options
A. have same structural forms
B. have different structural forms but identical catalytic properties
C. catalyses oxidation reactions
D. none of these

Discuss

Correct Answer: have different structural forms but identical catalytic properties

6. The inactive organic molecular portion of enzyme is
Options
A. apoenzyme
B. coenzyme
C. holoenzyme
D. none of these

Discuss

Correct Answer: coenzyme

7. Intracellular enzymes
Options
A. synthesize cellular material only
B. synthesize cellular material and perform catabolic reaction
C. synthesize cellular material and perform anabolic reaction
D. only provide energy to the cell

Discuss

Correct Answer: synthesize cellular material and perform catabolic reaction

8. Main function of an enzyme is to
Options
A. increase the activation energy
B. decrease the activation energy
C. maintain constant activation energy
D. none of these

Discuss

Correct Answer: decrease the activation energy

9. Organic molecules that increase the rate of metabolic reactions with themselves changing are known as
Options
A. coenzymes
B. enzymes
C. substrates
D. reactants

Discuss

Correct Answer: enzymes

10. Enzyme catalase has non-protein metal as
Options
A. magnesium
B. manganese
C. iron
D. zinc

Discuss

Correct Answer: iron

First 2

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