Chapter 8 enzyme metabolism essay

Question 1

Discuss

Answer 1

Imprtance of metabolism
Allosteric regulation
Feedback

Question 2

Tight regulation of metanolism through gene regulation

Answer 2

chemical chaos would result if a cells metabolic pathway as not tightly regualted. A cell regulated by swithing on and off the genes that encode enzymes or by regulating the activity of an enzyme

Question 3

Allosteric regulation

Answer 3

May either inhibit or stimulate enzyme acitivy. Occurs when regualtory moecule binds to a protein at one site and affects the proteins function at another site

Question 4

Activators

Answer 4

Stabilize active form of the enzyme

Question 5

Inhibitors

Answer 5

stabilize the inactive form of the enzyme

Question 6

Cooperation

Answer 6

form of allosteric regulation that can amplify enxyme activity. One substrate molecyke primes an enzyme to act on additional substrate molecules more readily. Allosteric because binding a substance to one active site affects catalysis of another active site

Question 7

Feedback

Answer 7

the end product of a metabolic pathway shuts down the pathway. Prevents a cell from wasting chemical resources by synthesising more product than what is needed (negative)