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Diffusion
The movement of particles from an area of high concentration to an area of low concentration
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 What is happening here?
Diffusion
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What Factors Effect Diffusion?
- Temperature
- Size (smaller particles diffuse faster)
- Shape (a round particle will move faster than a globular one)
- Environment in which occurring (solid, liquid, gas)
- Concentration gradient (the steeper, the faster)
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What is Osmosis?
The movement of water from an area of high concentration to low.
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What is a Concentration Gradient?
the rate at which it diffuses with the area. Ex: perfume in the room. Will reach the back last.
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Describe a Solution, solute, and solvent and give an example of each,
- Solution-made up of a solute and solvent. (coke)
- Solute- the thing which is being dissolved. (salt)
- Solvent- the thing which isdoing the dissolving (water)
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Describe Passive Diffusion and give an example
- cell doesn’t have to expend (use) energy to make it happen. Substances move directly through membrane from area of high to low concentration. No protein Carrier.
- Ex: Gases, water, lipid soluble molecules
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What is being shown in this picture?
Passive Diffusion
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Describe Fassiliated Diffusion and give examples
- uses passive transport (bc the particles are moving in the same direction) to move particles through the cell membrane with the help of transport proteins. (channel and carrier protein)
- Moves from High to low concentration.
- Ex: sugars and amino acids
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Describe Active Transport and give examples
- Moving from an area of low concentration to an area of high concentration. (move from areas of less concentration to areas with more concentration
- Energy needed
- Protein carryer needed
- EX: some sugars and amino acids
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what is taking place in this picture?
Active Transport
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Label the following diagram with the terms: Passive Transport, Active Transport, and Faciliated Diffusion.
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What is Endocytosis?
Transportation into the cell
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What is Exocytosis?
Transportation to the outside of the cell
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What process does this show? (pic of endo or exocytosis)
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