Energy: Question Preview (ID: 32490)

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Energy cannot be created or destroyed. It can be converted from one form to another and transferred between objects or systems
a) is the 1st law of thermodynamics
b) is the 2nd law of thermodynamics
c) is the 3rd law of thermodynamics
d) is the 4th law of thermodynamics

This is the assembly and the building of complex molecules
a) Oxidation
b) Anabolism
c) Catabolism
d) Entropy

How do enzymes lower activation energy
a) By orienting substrates to favor reaction
b) By inducing fit between substrate and the active site
c) Both of these
d) Neither is correct

The minimum energy needed to start a reaction
a) Oxidation
b) Kinetic energy
c) Activation energy
d) Entropy

This is the substance that an enzyme works on
a) Substrate
b) Allosteric site
c) Cofactor

These speed reaction rates by lowering activation energy
a) Enzymes
b) Cofactors
c) ATP
d) Entropy

In chemical reactions, these are the molecules out
a) Reactants
b) Intermediates
c) Active site
d) Products

These reactions are energy-requiring and get colder
a) Exergonic reactions
b) Endergonic reactions
c) Cofactors
d) Redox reactions

This is when chemical energy converted to kinetic energy
a) Mechanical energy
b) Potential energy

This is the measure of the degree of disorder and is the 2nd law of thermodynamics
a) Cellular respiration
b) Kinetic energy
c) Catalyst
d) Entropy

This is stored energy
a) Kinetic energy
b) Potential energy
c) Chemical energy
d) Mechanical energy

When energy is lost during with each transfer, it is usually lost as heat
a) True
b) False

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