Cell Membranes Flashcards
1
Q
What are glycoproteins?
A
made of carbohydrates (glyco) and proteins
allows cell signalling
2
Q
What is the role of cholesterol in cell membranes?
A
binds to the hydrophobic tails
makes the membrane more rigid - so less flexible
gives strength and support
3
Q
What are the two types of transport proteins?
A
channel protein and carrier protein
4
Q
What is glycolipid made of?
A
carbohydrate and lipid
5
Q
What do the hydrophobic heads do?
A
face inwards
6
Q
What do the hydrophilic heads do?
A
face outwards
7
Q
What can phospholipids do?
A
slide over each other - through fluids
8
Q
What do small non-polar molecules do?
A
diffuse / move through e.g. O2 or CO2
9
Q
What is water?
A
polar - so it doesn’t diffuse through easily and it moves into cells through aquaporins
