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ENZYMES - Coggle Diagram
ENZYMES
temperature
at low temperature enzyme activity is low.
this means the enzyme is not active.
as the temperature increase enzyme activity increase.
this means the enzyme becomes more active.
at optimum temperature enzyme activity is highest.
this means the enzyme is most active.
in humans being, the optimum temperature is around 37oC
as temperature increase above optimum temperature enzyme activity decrease.
when the temperature gets too high enzyme activity stops.
the enzyme is denatured (destroyed) by high temperature.
pH
at low pH enzyme activity is low.
this means the enzyme is not active.
as the pH increase enzyme activity increase.
this means the enzyme becomes more active.
at optimum pH enzyme activity is highest.
this means the enzyme is most active.
in human beings the optimum pH is 8 (slightly alkaline) for most enzyme
except for enzyme pepsin
.
as pH increase above optimum pH enzyme activity decrease.
when the pH gets too high enzyme activity stops.
the enzyme is denatured (destroyed) by high pH.
steps
substrate collides with of enzyme and becomes attached.
enzyme catalyses breakdown of substrate.
products released from active site.
definition
They are
proteins
that function as biological
catalysts
.
They are molecules that speed up a chemical reaction without being changed by the reaction.
.
enzyme are specific to their substrate.
an enzyme that catalyses glucose
will not
catalyse proteins.
.
it cannot carry out its function and enzyme activity become low/is lowered.
Optimum = best
when an enzyme denature, its active site has changed its shape.
functions
temperature, pH & substrate count
enzyme will
denature
if the temperature rises and when pH is not optimum.
