Warm-Up Compare the function of the cell wall and the cell membrane in plant and animal cells. Describe the characteristics and role of the nucleus. What.

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Presentation transcript:

Warm-Up Compare the function of the cell wall and the cell membrane in plant and animal cells. Describe the characteristics and role of the nucleus. What are two ways cells can differ? What organelles are found in the cytoplasm and what are their functions?

The Cell in its Environment (Set up for Cornell Notes) How big is a cell?

CELL MEMBRANE Selectively Permeable: Some substances can go through it while others cannot.

DIFFUSION Molecules move from an area of higher concentration to an area of lower concentration.

Diffusion of water through a selectively permeable membrane. OSMOSIS Diffusion of water through a selectively permeable membrane.

Cornell Notes Selectively permeable Diffusion Osmosis Some substances can pass through the membrane while others cannot. Molecules move from an area of higher concentration to an area of lower concentration. The diffusion of water molecules through a selectively permeable membrane.

Movement of materials through a cell membrane using energy. ACTIVE TRANSPORT Movement of materials through a cell membrane using energy.

Movement of materials through a cell membrane using energy. ACTIVE TRANSPORT Movement of materials through a cell membrane using energy.

ACTIVE TRANSPORT Movement of materials through a cell membrane using energy.

ACTIVE TRANSPORT Movement of materials through a cell membrane using energy.

ACTIVE TRANSPORT Movement of materials through a cell membrane using energy.

ACTIVE TRANSPORT Movement of materials through a cell membrane using energy.

ACTIVE TRANSPORT Movement of materials through a cell membrane using energy.

(THE OPPOSITE OF ACTIVE IS PASSIVE TRANSPORT) Does not require energy to pass particles through the membrane

Movement of Materials Active Transport Passive Transport Movement of materials through a cell membrane using energy. Does not require energy to pass particles through the membrane

Proteins in the cell membrane that carry molecules using energy. TRANSPORT PROTEINS Proteins in the cell membrane that carry molecules using energy.

A cell can also move materials by engulfing (also uses energy).

Brain Pop http://www.brainpop.com/search/results.weml?keyword=diffusion United Streaming video Learning Log Prompts Follow with United Streaming Video and Learning Log Prompts