chapter 10 lesson 3 cells & homeostasis. essential question what are cells made of? how do...
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CHAPTER 10 LESSON 3
Cells & Homeostasis
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Essential Question
What are cells made of?
How do Cells Maintain Homeostasis?
Homeo- The sameStasis- A condition of Balance
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Homeostasis
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How are these people maintaining homeostasis?
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Homeostasis in Cells
In all cells processes that help maintain homeostasis include:
getting and using energy from food
removing wastes.
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Energy from Food Making Food
Cellular respirationCells break down
glucose molecules in the presence of oxygen for energy
Waste product: carbon dioxide &
water
PhotosynthesisCells capture sun’s
energy to produce glucose molecules
Waste product: oxygen
Getting and Using Energy
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Cell Membrane
Made of two layers of fat, the cell
membrane is the gate keeper of the cell.
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Cell Membrane
There are structures in the cell membrane to regulate materials in and out of the cell.
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Diffusion- movement of particles
Particles move from
higher concentrati
on to lesser
concentration
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Osmosis- diffusion of water
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Home LearningComplete Lesson 4 Assess Your
Understandings
Review & Assessment Page 398 #12-17
Science in the News 3/31Extra Credit:
Gizmo #13 3/31“Cell” Phone- 4/3