Energy in biological Systems
Energy Definition
Types of Energy
Chemical, transport, mechanical
Kinetic and Potential Energy
Energy changes in reactions
Activation Energy
Transferring from one state to another state
Involves release of heat
Energy stored in reactant molecules used to work
How much energy needed to initiate reactant changing into product
"input energy"
Endergonic reactions
Exergonic reactions
Releases energy
Requires energy from the outside
Rate of Reaction
Enzymes: reduces disorder "massive speed dating agency" TRYING to bring two molecules together
Lock and Key, enzymes bind to specific substrate only. Defined by active site
Enzymes in cells
end in -ase
Factors affecting enzymes
substrate concentration
temperature
ph values
regulation of enzyme activity
competitive inhibitor - competing for the same active site of an enzyme
lower activation energy = increase reaction speed