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1. Diffusion How most materials move in and out of cells

Cell Transport * Moving substances (such as food, water, waste, and oxygen and CO2) in and out of cells through the cell membrane * There are 2 different types of Cell Transport. 2. Active Transport

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1. Diffusion How most materials move in and out of cells

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  1. Cell Transport* Moving substances (such as food, water, waste, and oxygen and CO2) in and out of cells through the cell membrane* There are 2 different types of Cell Transport 2. Active Transport Type of transport that requires energy to move large substances across a cell membrane through a carrier 1. Diffusion How most materials move in and out of cells • Examples of Diffusion: • Red blood cells move oxygen from lungs to all parts of the body • For example, the movement of food or sugar across the cell membrane Passive Transport Type of diffusion that is energy-free. One-third of all the cell’s energy is used to transport substances this way Osmosis Type of passive transport that moves water across a cell membrane If soil is dry, water will leave the plant by osmosis. This causes a plant to wilt and eventually die. For example, in plant cells, osmosis keep plants from wilting because it causes water to flow into the cell.

  2. _________ Transport* Moving substances (such as food, water, waste, and oxygen and CO2) in and out of cells through the ________ ____________* There are 2 different types 1. _____________________________ How most materials move in and out of cells 2. _________________ _____________ Type of transport that requires _____________ to move large substances across a cell membrane through a carrier • Examples of Diffusion: • Red blood cells move ___________ from lungs to all parts of the body • For example, the movement of food or ____________ across the ___________ membrane _____________ Transport Type of diffusion that is ___________-free. One-third of all the cell’s energy is used to transport substances this way ____________________ Type of passive transport that moves ______________ across a cell membrane If soil is dry, ___________ will leave the plant by ________________. This causes a plant to wilt and eventually die. **Use page A10 and A11 to fill in the blanks For example, in plant cells, _______________ keep plants from wilting because it causes _________ to flow into the cell.

  3. Use the pictures on Page A11 to draw pictures of Diffusion and Active Transport Diffusion Active Transport Active Transport is like: _____________________________ because ______________________ Diffusion is like: _____________________________ because ______________________

  4. Video Questions • When do red blood cells become wrinkled? • Does Passive transport require energy? • The door to the ice rink is compared to what? • What is it called when water diffuses across a cell membrane? • How does anything diffuse? • Does Active Transport require energy? • Can molecules move from low concentration to high concentration? • How is cystic fibrosis related to active transport? • How do substances that are too big fit through the cell membrane?

  5. Video Questions • When do red blood cells become wrinkled? • Does Passive transport require energy? • The door to the ice rink is compared to what? • What is it called when water diffuses across a cell membrane? • How does anything diffuse? • Does Active Transport require energy? • Can molecules move from low concentration to high concentration? • How is cystic fibrosis related to active transport? • How do substances that are too big fit through the cell membrane?

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