Chapter 8

Question 1

Metabolism

Answer 1

The totality of an organisms chemical reactions

Question 2

Catabolic pathways

Answer 2

Pathways which break down complex molecules into smaller ones

Question 3

Anabolic pathways

Answer 3

Pathways which build complex molecules using ATP

Question 4

A reaction must lose _________ for DeltaG to be negative

Answer 4

free energy

Question 5

How do enzymes speed up reactions

Answer 5

Enzymes bind to substrates and lower the EA, and provide a suitable environment for the reaction to take place.

Question 6

How do enzymes bind to substrates

Answer 6

Through a serious of weak hydrogen and ionic bonds

Question 7

Cofactors

Answer 7

Nonprotein molecules that are required for the proper function of an enzyme

Question 8

Coenzyme

Answer 8

Organic molecules which may serve as cofactors, such as vitamins

Question 9

Competitive Inhibitors

Answer 9

Reduce the productivity of enzymes by mimicking and blocking activation sites

Question 10

Non-Competitive Inhibitors

Answer 10

Does not compete with the substrate, but it lowers reaction speed

Question 11

Allosteric Regulatipon

Answer 11

A regulatory molecule binding to a protein which influences the function

Question 12

Allosteric Activation

Answer 12

Bind to non-substrate site and keep it open

Question 13

Allosteric Inhibition

Answer 13

Close up sites

Question 14

CoOperativity

Answer 14

When substrates binds to enzymes and make it only accept that type of substrate