enzymes

Question 1

enzyme

Answer 1

catalyst protein that speeds up reactions without being consumed by the reaction

Question 2

activation energy

Answer 2

energy required to bring reaction to its peak before it goes downhill

Question 3

substrate

Answer 3

reactant an enzyme acts on

Question 4

enzyme-substrate complex

Answer 4

when an enzyme binds to a substrate

Question 5

active site

Answer 5

spot in enzyme the substrate binds to

Question 6

induced fit

Answer 6

when an enzyme molds to a substrate so the reaction can be catalyzed faster

Question 7

cofactors

Answer 7

nonprotein enzyme helpers

Question 8

coenzymes

Answer 8

organic cofactors

Question 9

competitive inhibitors

Answer 9

bind to enzymes active site preventing catalysis

Question 10

noncompetitive inhibitors

Answer 10

bind to a random spot on an enzyme changing its shape and making the active site less effective

Question 11

allosteric regulation

Answer 11

occurs when regulatory molecule binds to a protein at one site and affects its function at another site, may inhibit or stimulate an enzyme’s activity

Question 12

feedback inhibition

Answer 12

end product of a metabolic pathway that shuts down the pathway and prevents a cell from wasting chemical resources by synthesizing more product than needed