Enzymes CH 3.3

Question 1

Catalyst

Answer 1

substance that speeds up a reaction without being permanently altered

Question 2

Sucrose + H2O –>

Answer 2

glucose + fructrose

Question 3

Transition State

Answer 3

a reactive mode that requires an input of energy

Question 4

Activation Energy

Answer 4

the energy input required to reach the transition state

Question 5

Substrate

Answer 5

the name for the reactants in an enzyme catalyzed reaction

Question 6

Active Site

Answer 6

the part on an enzyme that the substrate binds to

Question 7

Enzyme-Substrate Complex

Answer 7

the binding of the active site of the enzyme and the substrate which is held together by one or more means, such as hydrogen bonding, electrical attraction or temporary covalent bonding.

Question 8

Cofactors

Answer 8

inorganic ions such as copper, zinc and iron that bind to certain enzymes

Question 9

Coenzyme

Answer 9

carbon-containing molecule that is required for the action of one or more enzymes

Question 10

Prosthetic groups

Answer 10

non-amino acid atoms or molecular groupings that are permanently bound to their enzymes.