Enzymes Flashcards
what are enzymes (one word)
catalysts
what do enzymes control
reactions
what are enzymes (2words)
large proteins
what does a catalyst do (longer)
increases the speed of a reaction without being changed or used up in the reaction
chemical reactions usually involve things either….
split apart or joined together
every enzyme has a …..
active site with a unique shape
enzymes are picky so they ….
usually only catalyse one specific reaction
what affects the rate of a reaction involving an enzyme
temperature
what does a higher temperature do at first for the enzyme
increases the rate
if it gets to hot….
some of the bonds in the enzyme break
what happens when the bonds of enzymes break
this changes the shape of the active site so the substrate won’t fit
what is is called when a substrate doesn’t fit
denatured
define optimum temp
temperature that they work best at
what else can affect the rate
ph
if the ph is too high/low ….
it affects the bonds holding the enzyme together
