cell membrane Flashcards
(8 cards)
1
Q
what does the fluid mosaic model do
A
explains the structure and function of all cell membranes
2
Q
what are cell membranes
A
phospholipid bilayers
3
Q
what are phospholipids made of?
A
2 layers of phospholipid molecules (hydrophilic heads and hydrophobic tails)
4
Q
what three things are scattered through the bilayer?
A
carbohydrates, proteins and cholesterol
5
Q
what three functions does cell membrane have?
A
- seperate
- regulate
- communicate
6
Q
explain the seperate function of cell membrane
A
to seperate the cytoplasm from external environment (all cells) and create organelles (only eukaryotes)
7
Q
explain the regulate function of cell membrane
A
to regulate the movement of substances
8
Q
explain the communication function of cell membrane
A
communicate and recognise other cells
