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Published byVeronica Dalton Modified over 9 years ago
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DIFFUSION AND OSMOSIS
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Objective: I will apply my knowledge of osmosis and diffusion to explain my lab observations. Drill: What do you think happens to a drop of food coloring when it is added to water and no one stirs it?
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Brain POP http://www.brainpop.com/science/matterandch emistry/diffusion/preview.weml
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Diffusion Particles moving from an area of high concentration to an area of low concentration.
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Homeostasis How our body stays balanced.
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How does diffusion help us maintain homeostasis? Sugar/nutrients move into the cell Removes waste out of the cell
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Concentration Gradient Particles moving from an area of high concentration to an area of low concentration.
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Selectively Permeable Small molecules can move through the membrane large particles cannot.
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Osmosis WATER moving through a cell membrane from an area of high concentration to an area of low concentration.
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Passive Transport Does not require energy for particles to move across a cell membrane.
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Active Transport When cells use ATP energy to move molecules across a membrane.
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Active Vs. Passive Transport Which picture shows active transport?
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Solution Types
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Stations Using your notes complete the 5 station activities. The stations are not in order You will have 8 minutes at each station Do not move until the buzzer sounds!
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