Metabolism - Ans -Totality of an organisms chemical reactions (manages materials
and energy resources of a cell)
Catabolic Pathways - Ans -Release energy by breaking down complex molecules into
simpler compounds (digestive enzymes breakdown food
Anabolic Pathways - Ans -Consume energy to build complex molecules and rebuild
proteins
Dehydration Synthesis - Ans -Taking away water in order to create a new compound
Hydrolysis - Ans -Adding water to break one compound into two
Energy - Ans -Capacity to do work
Kinetic Energy - Ans -Energy associated with motion
Thermal (Heat) Energy - Ans -Kinetic energy associated with random atomic motion
Potential Energy - Ans -Stored energy relative to position
Chemical Potential Energy - Ans -Energy available for release in chemical reactions
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Thermodynamics - Ans -Study of energy transfers that occur in nature
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, Closed System - Ans -A system isolated from any outer surroundings
Open System - Ans -Energy and matter can be transferred with surroundings
(organisms)
1st Law of Thermodynamics - Ans -Energy cannot be created or destroyed, only
transferred
2nd Law of Thermodynamics - Ans -Every energy transfer adds to the entropy (chaos)
of the universe (some unusable energy is lost as heat, which contributes to entropy
Free Energy (G) - Ans -Part of a system's energy that can perform work.
Equilibrium - Ans -When G is at absolute minimum. The higher the G, the lower the
stability
Delta (Change in) G - Ans -Negative: Energy is lost (greater stability)
Positive: Not spontaneous
Catabolism - Ans -Releases energy, hydrolysis, digests polymers
Anabolism - Ans -Puts energy into a reaction, dehydration synthesis, build polymers
Exergonic Reaction - Ans -Energy is lost, and used in digestion and catabolism
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