Card Set Information
Types of Integral Membrane Proteins and transport
1 membrane spanning helix
C-terminus Inside cell
Single spanning helix
on inside of cell
Multiple transmembrane helicies, 1 polypeptide chain
Several transmembrane domains
Lipid linked polypeptide chain
Transmembrane helix(ces) and a lipid linked section
Moves a phospholipid from the outer leaflet to the cytosolic leaflet.
Moves a phospholipid from the cytosolic leaflet to the outer leaflet.
Moves lipids in either direction toward equilibrium.
Non polar molecules only
move down concentration gradient
Down Electrochemical Gradient through a channel
Primary Active Transport
Movement against electrochemical gradient through a channel using ATP.
Secondary Active Transport
Move against electrochemical gradient driven by ion moving down its gradient
Movement down elecrochemical gradient.
May be gated by ligand or ion.
Liver=removal of excess glucose from blood
pancrease= regulation of insulin release
Glucose uptake in the brain
Activity increased by insulin