Post on 21-Jan-2016
description
transcript
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EOC
Homeostasis
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Homeostasis
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Homeostasis
- maintaining a balance
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High
Low
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even distribution
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even distribution
high low concentration
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Highconcentration
Lowconcentration
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Highconcentration
Lowconcentration
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Osmosis
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Active Transport
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Going against the flow
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Low concentration
Highconcentration
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Low concentration
Highconcentration
Requires input of energy- diffusion and osmosis do not
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Cell model
98% water = High
95% water = Low
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Cell model
98% water = High
95% water = Low
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Cell model
98% water = High
95% water = Low
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Cell model
98% water = High
95% water = Low The
cell will lose water
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Cell model
98% water = High
95% water = Low The
cell will lose water
?
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Cell model
98% water = High
95% water = Low The
cell will lose water
? Not if it is losing water.
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Cell model
98% water = High
95% water = Low The
cell will lose water
? Not if it is losing water.
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Cell model
98% water = High
95% water = Low The
cell will lose water
? Not if it is losing water.It should if it loses water
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Cell model
98% water = High
95% water = Low The
cell will lose water
?Not if it is losing water.It should if it loses water
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Cell model
98% water = High
95% water = Low The
cell will lose water
?Not if it is losing water.It should if it loses water Only water can exit.
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Cell model
98% water = High
95% water = Low The
cell will lose water
?
Not if it is losing water.It should if it loses water Only water can exit.
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Cell model
98% water = High
95% water = Low The
cell will lose water
?
Not if it is losing water.It should if it loses water Only water can exit.
Nope
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Cell model
98% water = High
95% water = Low The
cell will lose water
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High H2O
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High H2O
Freshwater
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High H2O
Freshwater
LowerH2O
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High H2O
Freshwater
LowerH2O
Freshwater
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High H2O
Freshwater
LowerH2O
Freshwater
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High H2O
Freshwater
LowerH2O
Freshwater
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High H2O
Freshwater
LowerH2O
Freshwater
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High H2O
Freshwater
LowerH2O
Freshwater
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xThe concentration of water may vary, but the permeability of the membrane stays the same.
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Why is the salt removed?
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To maintain homeostasis
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To maintain homeostasis
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High H2O
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High H2O
Low H2O
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High H2O
Low H2O
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High H2O
Low H2O
x
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High H2O
Low H2O
xx
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High H2O
Low H2O
xx
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x
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xx
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x