1. Active Transport
A type of cellular transport that requires energy to move material across the cell membrane.
This is going to show how cells transport substances in and out. 1

2. Key Points of Active Transport
The Plasma Membrane
1/12/2019
Key Points of Active Transport
Moves materials from LOW to HIGH concentration
AGAINST the concentration gradient
Requires energy or ATP
G. Podgorski, Biol. 1010 2

3. What does it mean to move materials from low concentration to high concentration?

4. What does AGAINST the concentration gradient mean?B
To get this result A B
We need
ENERGY
Naturally, the liquid from A will move towards B until equilibrium is reached.
What if I needed the materials from B to move into A (against the gradient)? What would be necessary to accomplish this?

5. How does ATP provide energy?
ATP= Adenosine TriPhosphate
When the bond between phosphates is broken, energy is released!

6. Examples of Active Transport
The Plasma Membrane
1/12/2019
Examples of Active Transport
Pumps
Sodium-Potassium Pump
Proton Pump
What is a Pump?
A membrane protein!
G. Podgorski, Biol. 1010 6

7. Examples of Active Transport
The Plasma Membrane
1/12/2019
Examples of Active Transport
Vesicles for Transport
Endocytosis- INTO
Exocytosis- EXIT
G. Podgorski, Biol. 1010 7