chapter 5.4 - Active Transport Flashcards
1
Q
What is active transport?
A
The movement of particles from a region of low concentration to high concentration, against a concentration gradient.
2
Q
What is the purpose of carrier proteins in active transport?
A
They span across the membrane and act as pumps for particles.
3
Q
True or False - The process is selective, meaning that specific substances are transported by specific carrier proteins.
A
true
4
Q
What is bulk transport?
A
Another form of active transport, where large cells too big to fit through the channel or carrier proteins are transported in or out of cells.
5
Q
What is Endocytosis?
A
Bulk transport of material into cells
6
Q
What is Exocytosis?
A
Bulk transport of material out of cells
7
Q
What are the two different types of endocytosis?
A
- Phagocytosis - solids
- Pinocytosis - Liquids
