ENZYMES REGULATION QUIZ

Isozymes or iso enzymes are those enzyme which

have different structural forms but identical catalytic properties

have same structural forms

catalyses oxidation reactions

none of these

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Allosteric enzymes are

larger than simple enzyme

smaller than simple enzyme but not complex

larger and more complex than simple enzyme

smaller than simple enzyme

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The inactive organic molecular portion of enzyme is

holoenzyme

none of these

coenzyme

apoenzyme

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Enzyme catalase has non-protein metal as

iron

manganese

magnesium

zinc

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Main function of an enzyme is to

none of these

maintain constant activation energy

increase the activation energy

decrease the activation energy

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Enzymes can

not pass through semipermeable membrane

dissolve semipermeable membrane

pass through semipermeable membrane

none of these

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

co-factors

holoenzyme

apoenzyme

co-enzyme

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The active form of enzyme is

apoenzyme

holoenzyme

coenzyme

none of these

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Many enzymes consists of a protein combined with low molecular weight organic molecule called as

co-factors

co-enzyme

holoenzyme

apoenzyme

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Organic molecules that increase the rate of metabolic reactions with themselves changing are known as

substrates

reactants

coenzymes

enzymes

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