Plasma Membrane
Tags
Biology
Cegep/1
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