Plasma Membrane Flashcards
1
Q
Separates cell contents from surrounding environment. Selective permeability.
A
Plasma membrane
2
Q
How are phospholipids arranged in the plasma membrane?
A
2 layers, tail to tail, hydrophilic heads superficial (polar), hydrophobic tails interior (nonpolar)
3
Q
Act as building blocks for plasma membrane, helps maintain semi-permeable structure and fluidity of the plasma membrane.
A
cholesterol
4
Q
Is formed when sugar groups are attached to the phospholipids
A
Glycolipids
5
Q
Which part of phospholipids are hydrophilic?
A
Heads
6
Q
Which part of phospholipids are hydrophobic?
A
Tails
7
Q
The interior of the plasma membrane makes it _______ to water-soluble molecules.
A
Impermeable
8
Q
What are the roles of proteins in specialized membrane functions?
A
- Enzymes
- Hormone Receptors/Chemical Messengers
- Transporting Channels/Carriers
