Enzymes

Question 1

What is an enzyme?

Answer 1

biological catalyst which reduces the activation energy by providing an alternative pathway.

Question 2

What do co-enzymes do?

Answer 2

help enzymes bind to substrate

Question 3

What do you call an enzyme with a cofactor?

Answer 3

haloenzyme

Question 4

What is an apoenzyme?

Answer 4

an enzyme without a co factor

Question 5

What can cause denaturing of an enzyme?

Answer 5

too high a pH or temperature

Question 6

What does this describe- regulating an enzyme by adding/removing functional groups by breaking/making chemical bonds?

Answer 6

covalent modification

Question 7

describe what competitive inhibitors do.

Answer 7

compete with substrate for active site. Increasing the substrate concentration increases the rate of the reaction.

Question 8

describe what non-competitive inhibitors do.

Answer 8

bind to allosteric site of enzyme.

increasing substrate concentration has no effect on reaction rate.

Question 9

Glucose-6-phosphate is found in cells with what function?

Answer 9

the function to store glycogen

Question 10

what is the function of carnitine?

Answer 10

It is a carrier molecule which transports fatty acids

Question 11

What allows for recycling of NAD+?

Answer 11

the reduction of pyruvate to lacate