* Substance moves into cells (water, gases, food) * Substances move out of cells (waste, excess...
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Transcript of * Substance moves into cells (water, gases, food) * Substances move out of cells (waste, excess...
![Page 1: * Substance moves into cells (water, gases, food) * Substances move out of cells (waste, excess water, gases) * Cell membrane controls movement.](https://reader030.fdocuments.in/reader030/viewer/2022032703/56649cfd5503460f949cd50b/html5/thumbnails/1.jpg)
*Cells in Action
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*Cell Transport
*Substance moves into cells (water, gases, food)
*Substances move out of cells (waste, excess water, gases)
*Cell membrane controls movement
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*Semi-permeable
*Substances that allow some materials to flow through, but not other substances
*Cell membrane is semi-permeable
*Allows oxygen and water to pass through but not large proteins
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*Passive Transport
*Movement of substances through the cell without use of energy
*Transport water, oxygen, gases
*Diffusion
*Movement from crowded area to less crowded
*Examples: ammonia, burnt toast, perfume, cookies
*Osmosis
*Diffusion of water through semi-permeable membrane
* Crowded to less crowded
*Example: Wilted plant will become firm again if given water
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*Active Transport
*Endocytosis
*Cell uses energy to surround particle into vesicle
*Amoeba- capture food particles
*Exocytosis
*Vesicles form around particles and push towards cell membrane to release
*Multi-cellular
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*Photosynthesis
*In plants
*Take sunlight and CO2 and water
* Convert to sugars and oxygen
*Happens in the chloroplasts
*Contain chlorophyll (green pigment)
*Sugar called glucose
*Formula:
6CO2 + 6H2O + energy C6H12O6 + 6O2
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*Cellular Respiration
*Organisms that eat plants get the glucose that was stored in the plant
*Broken down sugar= ATP
*Breaking down food into ATP is cellular respiration
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*How it happens
*Begins in cytoplasm
*Glucose broken down into 3-carbon molecules
*Oxygen enters cell and travels to mitochondria
*3-carbon molecules break down releasing energy that is taken by ATP
*CO2 , water, and ATP released
*C6H12O6 + 6O2 6CO2 + 6H2O + ATP
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![Page 11: * Substance moves into cells (water, gases, food) * Substances move out of cells (waste, excess water, gases) * Cell membrane controls movement.](https://reader030.fdocuments.in/reader030/viewer/2022032703/56649cfd5503460f949cd50b/html5/thumbnails/11.jpg)
*Anaerobic vs. Aerobic
*Anaerobic- without oxygen
*Produces some ATP
*Use during hardcore exercise
*Produce lactic acid
*Fermentation is an example (bread)
*Aerobic- with oxygen
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*Word SortWith your group- organize how these works can go together
*• photosynthesis
*• glucose broken down
*• light energy
*• energy released
*• respiration
*• chloroplast
*• glucose created
*• mitochondrion
*• energy stored
*• carbon dioxide