Plasma Membrane

Cell eating

Cell drinking

A receptor is require to trigger the vessel.

Internalization of substances by formation of vesicle.

• Endocytosis

• Exocytosis

Accumulated vesicle secretions expelled from cell.

• Endocytosis

• Exocytosis

Facilitated Diffusion

• High to low

• Low to high

• Without energy

Always open

• Nongated Ion Channels

• Ligand Gated

• Voltage - gated

Open in respond to small molecules that bind to proteins or glycoproteins.

• Nongated Ion Channels

• Ligand Gated

• Voltage - gated

Open when there is a change in charge across plasma.

• Nongated Ion Channels

• Ligand Gated

• Voltage - gated

Nonpolar

• Hydrophilic

• Hydrophobic