Chp 8

Question 1

What is metabolism?

Answer 1

The totality of an organism’s chemical reactions

Question 2

Metabolic pathway

Answer 2

Begins with a specific molecule and ends with a product

Question 3

Catabolic pathway

Answer 3

Release energy by breaking down complex molecules into simpler compounds

Question 4

Anabolic pathway

Answer 4

Consume energy to build complex molecules into simpler ones

Question 5

Bioenergetic’S

Answer 5

The study of how energy flows through living organisms

Question 6

Energy

Answer 6

Capacity to cause change

Question 7

Kenetic energy

Answer 7

Energy associated with motion

Question 8

Thermal energy

Answer 8

Genetic energy associated with random movement of atoms or molecules/ kinetic energy that is released in the form of Heat

Question 9

Heat

Answer 9

Thermal energy transford between objects

Question 10

Potential energy

Answer 10

Energy that matter possesses because of its location or structure

Question 11

Chemical energy

Answer 11

Potential energy available for release in a chemical reaction

Question 12

Thermodynamics

Answer 12

Study of energy transformations

Question 13

First law of thermodynamics

Answer 13

Energy can’t be created or destroyed

Question 14

2nd law of thermodynamics

Answer 14

Energy transformation increase entropy

Question 15

Spontaneous process

Answer 15

Occur without energy input and always increase the entropy the universe

Question 16

Non spontaneous process

Answer 16

Deerase entropy will only ocur if every is provided

Question 17

Free energy ( delta g)

Answer 17

Energy that can do work when temperature and pressure are uniform

Question 18

Exergonic reaction

Answer 18

Release the energy

Question 19

Endergonic reaction

Answer 19

Absorbs/ goes in, the energy

Question 20

Energy coupling

Answer 20

Cells manage energy resources / they use a exergonic process to drive an endeergonic one

Question 21

ATP( adenosine triphosphate)

Answer 21

Cells energy shuttle

Question 22

Phosphorylated intermediate

Answer 22

Recipient molecule

Question 23

Catalyst

Answer 23

Chemical agent that speeds up a reaction without being consumed by the reaction

Question 24

Enzyme

Answer 24

Catalytic protein

Question 25

Activation energy

Answer 25

Initial energy needed to start a chemical reaction is called free energy

Question 26

Substrate

Answer 26

The reactant that an enzyme acts on

Question 27

Enzyme-substrate complex

Answer 27

The enzyme binds to it’s substrate

Question 28

Active site

Answer 28

Region on the enzyme where a substrate binds to

Question 29

Cofactors

Answer 29

Non protein enzyme helpers

Question 30

Coenzyme

Answer 30

Organic cofactor

Question 31

Competitive inhibitors

Answer 31

Bind to the actor site of an enzyme/ competing with the substrate

Question 32

Non competitive inhibitors

Answer 32

Bind to another part of an enzyme, causing the enzyme to change shape and making the active site less affective

Question 33

Allestoric regulation

Answer 33

May ethier inhibit or stimulate an enzymes activity

Question 34

Feedback inhibition

Answer 34

The end product of a metabolic pathway shuts down the pathway