Membranes Flashcards
1
Q
Phospholipids
A
Hydrophillic head, hydrophobic tail
2
Q
Cholesterol
A
Allows for membrane fluidity/stability by stiffening the membrane
3
Q
Membrane protiens
A
Integral = embedded in lipid bilayer, receptors Transmembrane = extend through membrane, transporters / channels Peripheral = intracellular, receptor associated enzymes
4
Q
Membrane carbohydrates
A
Sugar coating of cells
Glycocalyx = glycoprotiens / glycolipids
Self-identity markers, role in tissue growth
5
Q
Specialised cell junctions
A
Desmosomes = adhering junctures that anchor cells together
Tight junctions = join lateral edges of epithelial cells together near their lumenal membranes
Gap junctions = communicating junctions, allow for movement of small molecules / ions
6
Q
Plasma membrane
A
Fluid lipid bilayer embedded with proteins
Trilaminar appearance
