Metabolism Test with Verified Answers

Metabolism Test with Verified Answers
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
1




Thermodynamics - Ans -Study of energy transfers that occur in nature
Page

, 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
2
Page