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CELL MOVEMENT DIFFUSION AND OSMOSIS.

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Presentation on theme: "CELL MOVEMENT DIFFUSION AND OSMOSIS."— Presentation transcript:

1 CELL MOVEMENT DIFFUSION AND OSMOSIS

2 Cell Membrane Protects the cell Selective Permeability:
-cell only lets some things in and some things out

3 Cell Membrane LETS IN: -Oxygen -Food molecules - Water LETS OUT:
-Wastes

4 How do particles move in and out of cells?
PASSIVE TRANSPORT -DIFFUSION -OSMOSIS ACTIVE TRANSPORT

5 How do particles move? PASSIVE TRANSPORT: -Movement of materials from high concentration to low concentration -DOES NOT require ENERGY

6 PASSIVE TRANSPORT PORES MOLECULES MOLECULES CELL MEMBRANE

7 TYPES OF PASSIVE TRANSPORT
DIFFUSION: -When molecules move across a membrane from high concentration to low concentration Why do the molecules move? -To even out (HOMEOSTASIS)

8 TYPES OF PASSIVE TRANSPORT
OSMOSIS: -When WATER moves across a membrane from high concentration to low concentration Why does water move? -Homeostasis

9 DIFFUSION/ OSMOSIS Before diffusion/osmosis CELL NUCLEUS CELL MEMBRANE

10 DIFFUSION/ OSMOSIS Before diffusion/osmosis After diffusion/osmosis
CELL CELL NUCLEUS NUCLEUS CELL MEMBRANE CELL MEMBRANE

11 How do particles move? ACTIVE TRANSPORT:
-Movement of molecules from areas of low to high concentration -Requires Energy

12 ACTIVE TRANSPORT PORES MOLECULES MOLECULES CELL MEMBRANE

13 Cell Membrane LETS IN: - LETS OUT:

14 Cell Membrane ___________________ __________________:
-__________________ __________________

15 How do particles move? PASSIVE TRANSPORT:
______________________________________________________________________________________________________________ ____________________________________________

16 TYPES OF PASSIVE TRANSPORT
DIFFUSION: ________________________________________________________________________________________________________________________________________________ Why do molecules move? ____________________________________________________________________________

17 TYPES OF PASSIVE TRANSPORT
OSMOSIS: ______________________________________________________________________________________________________ Why does water move? ________________________________________________

18 How do particles move? ACTIVE TRANSPORT
______________________________________________________________________________________________________________ ____________________________________________

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