BIO 1330 Chapter 8: Energy &
Enzymes Test Questions with Correct
Answers.
Energy - Answer The ability to do work, or produce change. Cannot be created nor destroyed
1st Law of Thermodynamics - Answer The law of conservation of energy states that the total
energy of an isolated system is constant; energy can be transformed from one form to another,
but can be neither created nor destroyed.
2nd Law of Thermodynamics - Answer States that the total entropy can only increase over
time for an isolated system, meaning a system which neither energy nor matter can enter or
leave.
Kinetic Energy - Answer Energy of motion
Potential Energy - Answer Energy that is stored in position or configuration
How does transfer of energy explain how energy can be transformed between types? Ex. Light &
Chemical, Chemical & Kinetic - Answer Energy can be converted from one form into another
in three basic ways: Through the action of forces. This category has several important special
cases: Gravitational Forces - when gravity accelerates a falling object, its converts its potential
energy to kinetic energy.
Entropy - Answer The amount of disorder
Reactants - Answer A substance that takes part in and undergoes change during a reaction.
Products - Answer Substances that are produced in the reaction.
Exergonic - Answer A chemical reaction where the change in the free energy is negative
(there is a net release of free energy), indicating a spontaneous reaction. ; ∆G < 0
Endergonic - Answer An endergonic reactions may also be called an unfavorable reaction or
non spontaneous reaction. The reaction requires more energy than you get from it. Endergonic
reactions absorb energy from the surroundings. ; ∆G > 0
Enzymes Test Questions with Correct
Answers.
Energy - Answer The ability to do work, or produce change. Cannot be created nor destroyed
1st Law of Thermodynamics - Answer The law of conservation of energy states that the total
energy of an isolated system is constant; energy can be transformed from one form to another,
but can be neither created nor destroyed.
2nd Law of Thermodynamics - Answer States that the total entropy can only increase over
time for an isolated system, meaning a system which neither energy nor matter can enter or
leave.
Kinetic Energy - Answer Energy of motion
Potential Energy - Answer Energy that is stored in position or configuration
How does transfer of energy explain how energy can be transformed between types? Ex. Light &
Chemical, Chemical & Kinetic - Answer Energy can be converted from one form into another
in three basic ways: Through the action of forces. This category has several important special
cases: Gravitational Forces - when gravity accelerates a falling object, its converts its potential
energy to kinetic energy.
Entropy - Answer The amount of disorder
Reactants - Answer A substance that takes part in and undergoes change during a reaction.
Products - Answer Substances that are produced in the reaction.
Exergonic - Answer A chemical reaction where the change in the free energy is negative
(there is a net release of free energy), indicating a spontaneous reaction. ; ∆G < 0
Endergonic - Answer An endergonic reactions may also be called an unfavorable reaction or
non spontaneous reaction. The reaction requires more energy than you get from it. Endergonic
reactions absorb energy from the surroundings. ; ∆G > 0
