1. Cells & Homeostasis
Chapter 10 Lesson 3

2. What are cells made of? Essential Question
How do Cells Maintain Homeostasis?
Homeo- The same
Stasis- A condition of Balance

3. Page 376

4. Homeostasis

5. How are these people maintaining homeostasis?

6. 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.

7. 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

8. Page 377

9. Cell Membrane
Made of two layers of fat, the cell membrane is the gate keeper of the cell.

10. Cell Membrane
There are structures in the cell membrane to regulate materials in and out of the cell.

11. Diffusion- movement of particles
Particles move from higher concentration to
lesser concentration

12. Osmosis- diffusion of water

13. Page 378

14. 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