1. The Cell in Action
Chapter 5 - section 1 & 2

2. Chapter Preview
Exchange with the Environment
Cell Energy

3. Exchange with the Environment section 1
NEW TERMS
Diffusion
Osmosis
Passive Transport
Active Transport
Endocytosis
Exocytosis
OBJECTIVES
Explain the process of diffusion
Describe how osmosis occurs
Compare and contrast passive transport and active transport
Explain how large particles get into and out of cells

4. What is Diffusion
DIFFUSION - is the movement of particles from an area where there concentration is high to an area where the concentration is low.

5. What is Osmosis
OSMOSIS - is the diffusion of what through the cell membrane
Left Pictures - A healthy red blood cell
Right Picture - A red blood cell that is in pure water.

6. Moving Small Particles
Passive transport - does not require energy
Active Transport - requires energy in the form of ATP

7. Moving Larger Particles
Endocytosis - the movement of large molecules into the cell using a vesicle

8. Moving Larger Particles
Exocytosis - the movement of large molecules out of the cell using a vesicle

9. Cell Energy section 2 NEW TERMS OBJECTIVE Photosynthesis
Cellular respiration
Fermentation
OBJECTIVE
Describe the process of photosynthesis and cellular respiration.
Compare and contrast cellular respiration and fermentation.

10. From Sun to Cell
Photosynthesis - plant cells use the energy from the sun to make food (glucose) from carbon dioxide and water using chloroplasts.

11. Getting Energy from Food (with Oxygen)
Cellular Respiration - Mitochondria will break down food (glucose) with oxygen to form carbon dioxide, water, and energy (ATP)

12. Getting Energy from Food (without Oxygen)
Fermentation - the production of ATP without oxygen. 2 types
In Muscles - lactic acid
Yeast - alcohol