Exam (elaborations)
BIOL 151 Exam II VCU Questions answers latest update
- Course
- BIOL 151
- Institution
- University Of Wisconsin - Madison
BIOL 151 Exam II VCU Questions answers latest update
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BIOL 151 Exam II VCUCatabolic reaction - big molecules to small molecules; releases energy
anabolic reaction - small molecules to big molecules; consumes energy
Exergonic - energy out; the reactants have MORE energy than the products. This
reaction releases energy
endergonic - energy in; the products contain MORE energy than the reactants
(photosynthesis for ex)
Law of Thermodynamics 1 - conservation of energy; energy can neither be
created nor destroyed
Law of Thermodynamics 2 - With any transfer, entropy increases; energy lost to
system
entropy - a measure of the amount of randomness and disorder in a system. It
always tends to increase this can only be overcome by adding energy.
Energy - The capacity to do work
, Kinetic energy - energy of movement
Potential energy - stored energy
Coupled reactions - Energy from reactions in the sub (exergonic) provide energy
for photosynthesis (endergonic)
aka. one process is supplied by another process
Energy carrying molecules - ATP
ATP - The most common energy carrier molecules in cells.
The bongs joining the last two P groups to the ATP molecule are "high energy
bonds"
ADP - When one of the phosphates is released from ATP
Enzyme - A substance that helps a chemical reaction to occur in a catalyst.
Lowers activation energy
Substrate - Molecule on which the enzyme acts
Active site - The location within the enzyme where the substrate binds
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