eoc homeostasis

1

2

EOC

Homeostasis

3

Homeostasis

4

Homeostasis

- maintaining a balance

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High

Low

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8

even distribution

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even distribution

high low concentration

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11

Highconcentration

Lowconcentration

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Highconcentration

Lowconcentration

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Osmosis

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19

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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

?

32

Cell model

98% water = High

95% water = Low The

cell will lose water

? Not if it is losing water.

33

Cell model

98% water = High

95% water = Low The

cell will lose water

? Not if it is losing water.

34

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

35

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

36

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.

37

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.

38

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

39

Cell model

98% water = High

95% water = Low The

cell will lose water

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41

42

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

47

High H2O

Freshwater

LowerH2O

Freshwater

48

High H2O

Freshwater

LowerH2O

Freshwater

49

High H2O

Freshwater

LowerH2O

Freshwater

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51

x

52

x

x

53

x

xThe concentration of water may vary, but the permeability of the membrane stays the same.

x

54

x

x

x

Why is the salt removed?

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x

x

x

To maintain homeostasis

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x

x

x

To maintain homeostasis

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58

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

62

High H2O

Low H2O

xx

63

High H2O

Low H2O

xx

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65

66

67

x

68

x

69

xx

70

xx

71

xx

x

72

xx

x