Unit 2: Membrane Transport Flashcards
1
Q
Passive transport
A
Net movement of molecules from high to low concentration without the US eof energy
2
Q
Two types of passive transport.
A
- Diffusion; through the membrane
- Facilitated diffusion; movement through transport proteins
3
Q
Active transport
A
Transport of substances form low to high concentrations, which requires energy
4
Q
Endocytosis
A
The taking in of molecules by forming membrane from the membrane around it.
5
Q
3 types of endocytosis.
A
- Phagocytosis
- Pinocytosis
- Receptor-mediated endocytosis
6
Q
Phagocytosis
A
Taking in large particles
7
Q
Pinocytosis
A
Takes in extracellular fluid containing dissolved substances
8
Q
Receptor-mediated endocytosis
A
Receptor proteins on the cell are used to capture specific molecules
9
Q
Exocytosis
A
Internal vesicles use energy to fuse with the membrane to separate large macromolecules
