ENZYMES REGULATION QUIZ

Who coined the word enzyme first?

Pasteur

Buchner

Kuhne

Liebig

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Enzyme catalase has non-protein metal as

magnesium

iron

zinc

manganese

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Main function of an enzyme is to

increase the activation energy

decrease the activation energy

none of these

maintain constant activation energy

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The active form of enzyme is

coenzyme

none of these

apoenzyme

holoenzyme

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Isozymes or iso enzymes are those enzyme which

catalyses oxidation reactions

none of these

have different structural forms but identical catalytic properties

have same structural forms

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Intracellular enzymes

only provide energy to the cell

synthesize cellular material and perform catabolic reaction

synthesize cellular material only

synthesize cellular material and perform anabolic reaction

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The inactive organic molecular portion of enzyme is

holoenzyme

none of these

coenzyme

apoenzyme

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The inactive protein from of enzyme is

cofactor

haloenzyme

enzyme

apoenzyme

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Allosteric enzymes are

smaller than simple enzyme but not complex

larger than simple enzyme

smaller than simple enzyme

larger and more complex than simple enzyme

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Protein portion of an enzyme when it is combined with organic molecule is termed as

apoenzyme

co-factors

co-enzyme

holoenzyme

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