Chapter8: Introduction To metabolism

Question 1

Kinetic energy

Answer 1

Energy of motion

Question 2

Thermal energy

Answer 2

Energy of molecules moving

Question 3

Potential energy

Answer 3

Energy that is stored in position or configuration

Question 4

Chemical energy

Answer 4

Energy stored in chemical bonds

Question 5

Enthalpy

Answer 5

Internal energy
The potential energy of the molecule (heat content)

Question 6

Entropy

Answer 6

Amount of disorder
Less ordered= morespreadout
High concentration to low

Question 7

Exothermic

Answer 7

Releases heat
Products have less potential energy than reactants

Question 8

Endothermic

Answer 8

Heat energy is taken up
Products have higher potential energy than reactants

Question 9

Second law of thermodynamics

Answer 9

States that total entropy always increases in a system

Question 10

Gibbs free energy

Answer 10

Determines whether a reaction is spontaneous or requires added energy to proceed
The change in enthalpy - the change in entropy

Question 11

Exergonic

Answer 11

A spontaneous reaction

Question 12

Endergonic

Answer 12

A nonspontaneous reaction

Question 13

Oxidation

Answer 13

Loss of electrons
Exergonic

Question 14

Reduction

Answer 14

Gain of electrons
Endergonic