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Nat Quiz - 19 May

Which of the following statements about denaturation is correct? Choose 1 or more answer.

Denaturation is generally irreversible

Denaturation results in a change in the specific shape of active site

Denaturation is generally reversible

Denaturation can cause soluble proteins to turn into insoluble proteins

Which of the statements explain why enzyme activity decrease beyond optimum temperature? Choose 1 or more answer.

Activation energy decreases

Kinetic energy becomes too high

Substrate are not complementary to shape of enzyme's active site

Bonds that give enzyme unique 3D shape are broken

Which of the following statements about enzymes are correct? Choose 1 or more answer.

Enzymes are made of DNA

Enzymes catalyse reversible reactions (both forward and backward)

Enzymes increase the rate of both forward and backward reaction

Enzymes catalyze virtually almost all reactions in the body

Which of the following statements about enzymes are correct? Choose 1 or more answer.

Enzymes are required in small amounts since they remain chemically unchanged at the end of the reaction

All enzymes are involved in digestion of larger molecules into smaller molecules

Enzymes are inorganic catalysts

Hydrolases catalyze breakdown of water

If amylase catalyzes the breakdown of 10g of starch at 20 degrees celcius, how many grams of starch will be broken down at 30 degrees celcius?

10g

20g

40g

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