Plasma Membrane ​
Tags
Cegep1
Biology
Word count
118 words
Reading time
1 minute
Outer membrane of the cell
Part of the endomembrane system
Continuous with endoplasmic reticulum
Transport across plasma membrane ​
See Membrane
Exocytosis ​
A transport vesicle fuses with the plasma membrane and empties payload outside.
A.k.a. secretion
Requires energy
Endocytosis ​
Payload outside is wrapped by the plasma membrane into a transport vesicle.
Requires energy
Phagocytosis ​
The cell extends pseudopodia (sing. pseudopodium) that surrounds the particles.
Forms a food vacuole
When a macrophage engulfs a bacteria or when an amoeba engulfs its food
Pinocytosis ​
Forms a protein-coated vesicle
Receptor-mediated endocytosis ​
Specific molecules outside bind to receptors and are then wrapped.
Forms a protein-coated vesicle
Ajitani Hifumi