Enzymes

Question 0

Catalyst

Answer 0

• Substance that increases the rate of reaction (without being consumed in the reaction)
• Includes Enzymes.

Question 1

Enzyme

Answer 1

• Protein that Catalyses (increases rate of) chemical reactions in living organisms.
• Enzyme SPECIFIC for particular chemical reaction.
• Enzyme may be used over & over again.

Question 2

Substrate

Answer 2

Substance that is acted on by a Catalyst.

Eg: Enzyme.

Question 3

Product

Answer 3

Formation of new compounds

Question 4

Reactant

Answer 4

Chemical elements/compounds

Question 5

Active site

Answer 5

Site on the surface of an enzyme that binds the Substrate molecule

Question 6

Activation energy

Answer 6

Energy required to start a chemical reaction

Question 7

Optimum Tempreture

Answer 7

Temperature at which an Enzymes Catalytic activity is greatest.

Question 8

Optimum pH (find proper answer!)

Answer 8

Favorable pH value - the point where the enzyme is most active

Question 9

Critical Tempreture

Answer 9

Temperature at which Denaturation of Enzyme molecules begin to occur as temperature rises

Question 10

Denaturation

Answer 10

• Irreversible change in protein structure.

- Result of heating above certain Critical Temp.

Question 11

Affinity

Answer 11

Measure of the ease with which an enzyme binds with it’s Substrate

Question 12

Specificity (find proper answer!)

Answer 12

Enzyme specific to its Substrate

Question 13

Protease

Answer 13

Enzymes that cut proteins into smaller Polypeptides.

Question 14

Lipase

Answer 14

Enzyme that breaks down Lipids.

Question 15

Amylase

Answer 15

Enzyme that breaks down Starch.