2061403
Descrição
Mapa Mental por imaumoh123, atualizado more than 1 year ago
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Criado por imaumoh123
quase 10 anos atrás
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Factors affecting enzymes
- Temperature
- Rate of reactions
increases with temp up to
the optimum temp
- rate of reaction peaks at the
optimum temp
- rate of reaction peaks at the
optimum temp
- before the optimum temp, a rise
in temp increases the kinetic
energy of the reactants
- they move faster and are more likely to
collide and interact with each other
- they move faster and are more likely to
collide and interact with each other
- Above the optimum temp bonds
that maintain the 3D shape start
breaking, changing the shape of
the active site
- enzymes start to denature
- enzymes start to denature
- Rate of reactions
increases with temp up to
the optimum temp
- pH
- most enzymes work effectively within a
narrow pH range with one optimum pH
- most enzymes have an optimum pH of 7-8
- some enzymes work in extreme pH environments, e.g. Pepsin pH of 1-2
- some enzymes work in extreme pH environments, e.g. Pepsin pH of 1-2
- in highly acidic or alkaline conditions,
the H+ or OH- ions interact with
amino acids, this breaks bonds and
alters the shape of the activie site =
denaturation
- most enzymes have an optimum pH of 7-8
- most enzymes work effectively within a
narrow pH range with one optimum pH
- Substrate concentration
- rate of reaction is directly
proportional to substrate
concentration until it reaches a
maximum value
- after a point all the active sites will be
in use (active site saturation)
- after a point all the active sites will be
in use (active site saturation)
- rate of reaction is directly
proportional to substrate
concentration until it reaches a
maximum value
- Enzyme concentration
- rate of reaction is directly
proportional to enzyme
concentration as long as theres no
other limiting factors
- rate of reaction will be increased as there's more active
sites available
- if the substrate is limited the rate of reaction will only
increase up to a maximum point as there will be more
active sites than substrate molecules
- if the substrate is limited the rate of reaction will only
increase up to a maximum point as there will be more
active sites than substrate molecules
- rate of reaction will be increased as there's more active
sites available
- rate of reaction is directly
proportional to enzyme
concentration as long as theres no
other limiting factors
Anexos de mídia
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