1. Passive vs. Active Transport
Mrs. Harper
10/2/17
Biology

2. October 2, 2017 Download Notes Begin working on Do Now
Have homework Passive Transport WS on pulled up

3. Do Now 10/2/17 Does active transport require energy?
What is the flow of the concentration gradient in passive transport? (high to low or low to high)
Explain simple diffusion.
Explain facilitated diffusion.
Explain osmosis.
Name one difference between simple vs. facilitated diffusion.
What is the flow of the concentration gradient in active transport? (high to low or low to high)

4. Transport in the Cell

5. Passive Transport Does NOT require energy (ATP)
Passive = no energy needed

6. Passive Transport & Concentration Gradient
HIGH  LOW
Goes with the natural flow

7. Types of Passive Transport
Diffusion
Facilitated Diffusion
Osmosis

8. Active Transport
DOES require energy (ATP)
Active = energy needed

9. Active Transport & Concentration Gradient
LOW  HIGH
Goes against the natural flow

10. Examples of Active Transport
Sodium/Potassium Pump
Proton Pump
Exocytosis
Endocytosis

11. Similarities Both move molecules across membrane
Both have a concentration gradient
Both are important to the function of the cell

12. Rapid Review
Take 2 minutes to fill in the Venn Diagram below comparing and contrasting passive vs. active transport
Try to get at least 4 characteristics/examples in each
Do this independently on code red. We will check with partner/whole group in a moment

13. -Facilitated diffusion -Osmosis -Energy required -Low  High
-No energy required
-High  Low
-Simple diffusion
-Facilitated diffusion
-Osmosis
-Energy required
-Low  High
-Na+/K+ pump
-Proton pump
-Endocytosis
-Exocytosis
-Move molecules
-Concentration gradient
-Important to
cell function