Topic 5: Enzymes

Question 1

Active site

Answer 1

A specific region of an enzyme where the substrate binds and the reaction takes place.

Question 2

Catalyst​ -

Answer 2

A substance that increases the rate of a chemical reaction without being changed itself.

Question 3

Denaturation

Answer 3

Exposure to high temperatures or extremes of pH, produces a permanent change in the shape of an enzyme’s active site that prevents the binding of a substrate.

Question 4

Enzyme​

Answer 4

A biological catalyst that increases the rate of reactions in living organisms.

Question 5

Enzyme-substrate complex

Answer 5

The temporary complex formed when the substrate binds to the active site of the enzyme.

Question 6

Rate of reaction

Answer 6

The speed at which reactants are converted into products.

Question 7

Substrate specificity

Answer 7

The ability of an enzyme to catalyse only a specific reaction or set of reactions which have substrates complementary to the shape of the enzyme