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