1.3 Flashcards
1
Q
Why do phospholipids form bilayers?
A
Because it is amphipathic, meaning it is hydrophilic (phosphate head) and hydrophobic (hydrocarbon tails
2
Q
List some functions of membrane proteins:
A
Channels: for process called facilitated diffusion
Pumps: for active transport
Glycolipids & glycoproteins: increase structural stability & protect it, aid in cell recognition
Enzymes are embedded
Proteins aid cell to cell adhesion
3
Q
What is cholesterol, and what is its function?
A
It is a component of animal cell membranes, it reduces membrane fluidity, by reducing movement of fatty acid tails, and it reduces membrane permeability
4
Q
Draw the fluid mosaic model
A
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