BERNE AND LEVY PHYSIOLOGY 7TH EDITION COMPREHENSIVE REVIEW GUIDE WITH SCENARIOS AND ANSWERS

BERNE AND LEVY PHYSIOLOGY 7TH EDITION
COMPREHENSIVE REVIEW GUIDE WITH
SCENARIOS AND ANSWERS

◉- transmembrane proteins . Answer: Membrane Proteins


- Many integral membrane proteins span the bilayer; such proteins are
termed ______. They have both hydrophobic and hydrophilic regions. !e
hydrophobic region, often in the form of an α helix, spans the membrane


◉lipid anchors . Answer: Membrane Proteins


- A protein can also be attached to the membrane via ____. The protein
is covalently attached to a lipid molecule, which is then embedded in
one lea%et of the bilayer.


◉Peripheral proteins . Answer: Membrane Proteins


may be associated with the polar head groups of the membrane lipids,
but they more commonly bind to integral or lipid-anchored proteins.


◉Water channels, or aquaporins (AQPs . Answer: Membrane Transport
Proteins

, Are the main routes for water movement into and out of the cell.


◉ . Answer: Membrane Transport Proteins


- are found in all cells and are especially important for the function of
excitable cells


◉uniporters (or facilitated transporters) . Answer: Membrane Transport


Solute carriers


- transports a single molecule across the membrane. The transporter that
brings glucose into the cell (glucose transporter <(-65->, or S-C" is an
important member of this group.


◉symporters (or cotransporters), . Answer: Membrane Transport


Solute carriers


- couples the movement of two or more molecules/ions across the
membrane. As the name implies, the molecules/ions are transported in
the same direction