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Transcript
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 1. Diffusion 2. Active Transport How most materials move in and out of cells Type of transport that requires energy to move large substances across a cell membrane through a carrier Passive Transport Examples of Diffusion: Type of diffusion that is energy-free. 1. 2. 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 Osmosis Type of passive transport that moves water across a cell membrane For example, in plant cells, osmosis keep plants from wilting because it causes water to flow into the cell. If soil is dry, water will leave the plant by osmosis. This causes a plant to wilt and eventually die. One-third of all the cell’s energy is used to transport substances this way _________ 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. _____________________________ 2. _________________ _____________ How most materials move in and out of cells Type of transport that requires _____________ to move large substances across a cell membrane through a carrier _____________ Transport Type of diffusion that is ___________-free. Examples of Diffusion: 1. 2. Red blood cells move ___________ from lungs to all parts of the body For example, the movement of food or ____________ across the ___________ membrane 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 For example, in plant cells, _______________ keep plants from wilting because it causes _________ to flow into the cell. 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 • Use the pictures on Page A11 to draw pictures of Diffusion and Active Transport Diffusion Diffusion is like: _____________________________ because ______________________ Active Transport Active Transport is like: _____________________________ because ______________________ Video Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 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? Video Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 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?
