Enzymes

Question 1

Enzyme

Answer 1

A molecule, usually a protein, which acts as a biological catalyst; lower the activation energy of a reaction

Question 2

Catalyst

Answer 2

a substance that speeds up a chemical reaction but can be used over and over again

Question 3

Active site

Answer 3

Place on an enzyme where another molecule bonds and is changed

Question 4

Substrate

Answer 4

the molecule that bonds to the enzyme and is changed by the reaction there; the reactant

Question 5

What is an enzyme’s relationship with a substrate

Answer 5

Enzymes bind to substrates to fasten the pace of reactions

Question 6

What can affect enzyme activity?

Answer 6

Temperature, pH, concentration

Question 7

Temperature’s relationship with enzymes

Answer 7

Heat fastens the pace
Too high heat causes denaturing
Too cool slows the pace

Question 8

pH’s relationship with enzymes

Answer 8

Too low of a pH causes it to slow
Too high of pH causes denaturing
An acceptable range causes the pace to fasten

Question 9

Concentration’s relationship with enzymes

Answer 9

Increasing the enzyme or substrate concentration will speed up the reaction, but only until all of the enzymes have stuck or until all the substrates have an enzyme

Question 10

kinetics

Answer 10

the study of the rate of reactions