LEC 2 Flashcards
1
Q
What is the primary function of cell membranes?
A
Act as a barrier to separate cytoplasm from outside environment & regulate transportation
2
Q
What is the importance of cholesterol in cell
membranes
A
Regulates membrane fluidity
3
Q
What are three major components of cell
membranes
A
Lipid bilayer
Integral Protein
Peripheral Protein
4
Q
What is a common integral protein hormone
receptor?
A
B-Agonists
5
Q
What are the differences among desmosomes, tight
junctions, and gap junctions
A
Desmosomes: tightly bound and local thickenings
Tight junctions: restrict movement Gap junctions: allows passage
