do now! copy vocabulary words into your notebooks: cell membrane concentration diffusion osmosis...
TRANSCRIPT
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Do Now!Copy vocabulary words into your notebooks:cell membrane concentrationdiffusionosmosisequilibriumactive transportpassive transport
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DIFFUSION: Active and Passive Transport
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What is the other name for the Cell Membrane?
• Fluid Mosaic Model
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Passive Transport• Does osmosis or diffusion require energy?
• No, molecules move along a concentration gradient.
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Facilitated Diffusion• Facilitated Diffusion- molecules move down a concentration gradient with the aid of special proteins.
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Active Transport• Requires Energy.
• ATP (form of energy made by mitochondria).
• Moves against the concentration gradient.
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Endocytosis
Transporting material into a cell by the in folding of a membrane.
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2 Types of Endocytosis
• Phagocytosis- Solid particles are ingested into the cell.
• Pinocytosis – liquids taken into the cell.
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Exocytosis• Moves materials out of the cell
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Let’s Go to the Video!
QuickTime™ and aCinepak decompressor
are needed to see this picture.
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One More Time!
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Summary1.What is Diffusion?2.What is Osmosis?3.What is Active Transport?
4.What is Passive Transport?
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HW
Complete class handouts.