BIOENERGETICS

Question 1

Study of the transformation of energy in living organisms
- produce, storing or consuming ATP

Answer 1

BIOENERGETICS

Question 2

LAWS OF THERMODYNAMICS

Answer 2

1. Law of Conservation of Energy
2. Entropy (2nd Law of Thermodynamics)

Question 3

Energy cannot be created or destroyed in isolated environment
- energy is constant
- transfered from other to another

Answer 3

Law of Conservation of Energy

Question 4

Energy transfer will increase the entropy of the universe and reduce the amount of usable energy available to do work

Answer 4

Entropy (2nd Law of Thermodynamics)

Question 5

Amount of energy capable of doing work during reaction at constant temperature and pressure

Answer 5

Gibbs free energy (∆G)

Question 6

-∆G = release of energy is called

Answer 6

Exergonic reaction

Question 7

+∆G = gained free energy

Answer 7

Endergonic reactions

Question 8

Heat content of the reacting system

Exothermic: [heat content] Products < Reactants = ∆H IS (-)
Endothermic: + ∆H

Answer 8

Enthalpy

Question 9

Randomness or disorder in a system
- products are less complex and more disordered in reactants
- units of ∆G and ∆H are joules/mole or calorie/mole (1cal = 4.184 J)

Answer 9

Entropy

Question 10

Units of entropy

Answer 10

Joules/mole.kelvin (J/mol.K)

Question 11

(+) ∆S

Answer 11

Increase entropy

Question 12

(-) ∆H

Answer 12

Heat is released