Chapter 8 Flashcards
1
Q
The plasma membrane of the cell exhibits what?
A
Selective permeability, that is, it allows some substances to cross it more easily than others.
2
Q
What type of molecule is a phospholipid?
A
An amphipathic molecule, meaning it has both a hydrophilic (“water-loving”) region and a hydrophobic (“water-fearing”) region
3
Q
True or False? most membrane proteins are amphipathic.
A
True
4
Q
A membrane is held together mainly by what?
A
hydrophobic interactions which are much weaker than covalent bonds
