Enzymes

Question 1

Transferases

Answer 1

Enzymes that move a functional group from molecule A to molecule B.

Question 2

Ligases

Answer 2

Combines two molecules.

Question 3

Oxidoreductases

Answer 3

Transfers electrons from molecule A to molecule B and vice versa.

Question 4

Common oxidoreductase

Answer 4

Dehydrogenase (loss of electrons)

Question 5

Isomerases

Answer 5

Converts molecule A to one of its isomers

Question 6

Hydrolases

Answer 6

Uses water to cleave molecule A into molecule B and molecule C.

Question 7

Lyases

Answer 7

Pushes molecule A to dissociate into molecule B and molecule C without using water or oxidation/reduction.

Question 8

Glycogen synthase

Answer 8

Forms glycogen from glucose by making alpha-1, 4-Glycosidic linkages

Question 9

ATPase transports what ions and in what direction?

Answer 9

3 Na+ out of cell and 2 K+ into the cell

Question 10

Catalytic efficiency =

Answer 10

kcat/Km Note: The smaller the ratio, the lower the catalytic efficiency

Question 11

Uncompetitive inhibitors do what to Km and Vmax?

Answer 11

Decreases both.

Question 12

Using a lineweaver burk plot, Km =

Answer 12

-1/Km, where Km = the value of 1/[S] when 1/[Vo] = 0

Question 13

Michaelis Menton equation

Answer 13

Velocity or reaction = Vmax([S]/[S] + Km)

Question 14

Vmax =

Answer 14

Reciprocal of the Michaelis Menton equation