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Biology - Enzymes - Coggle Diagram
Biology - Enzymes
Biological Catalyst
speed up useful chemical reactions
Increases speed of a reaction without being Changed or Used Up in the reaction
made of proteins
chemical reaction
Catabolic
large molecules -> smaller
Anabolic
small molecules -> larger
Lock and Key model
Enzyme
only catalyse one specific reaction
substrate has to fit enzymes active site
unchanged after reaction
Active Site
unique shape that fits onto substance involved in a reaction
complementary shape to the substrate it binds to
Substrate
substance that enzyme acts on
in reactions
split apart or joined together
Rate of Enzyme-Catalysed Reactions
Temperature
higher temperature increases rate of reaction
optimum temperature
they work best at
too hot
changes shape of active site
substrate won’t fit anymore
denatured
pH
too high or too low
changes shape of active site
denatured
optimum pH