Biology 155 - Chapter 5 Exam Questions And
Answers 100% Pass
All cellular membranes have 4 components - ANS 1. Phospholipid bilayer
2. Transmembrane proteins
3. Interior protein network
4. Cell surface markers
Phospholipid bilayer - ANS flexible matrix, barrier to permeability
transmembrane proteins - ANS integral proteins that span the membrane.
Interior protein network - ANS peripheral or intracellular membrane proteins (attached to
the cytoskeleton)
cell surface markers - ANS a membrane protein that identifies the cell type (glycoproteins
and glycolipids)
membrane proteins (various functions) - ANS 1. Transporters
2. Enzymes
3. Cell-surface receptors
4. Identity markers
5. Adhesion