60 Flashcards
(6 cards)
1
Q
Which phosphatidylinositol derivative predominates in plasma membranes?
A
Phosphatidylinositol 4,5-bisphosphate
2
Q
Name two phosphatidylinositol derivatives found in endosomes.
A
Phosphatidylinositol 3-phosphate and phosphatidylinositol 3,5-bisphosphate.
3
Q
To which carbons are fatty acids esterified in glycerophospholipids?
A
Carbon 1 (C1) and Carbon 2 (C2).
4
Q
What type of fatty acid is usually esterified to C1 of glycerol in glycerophospholipids?
A
A saturated fatty acid
5
Q
What type of fatty acid is usually esterified to C2 of glycerol in glycerophospholipids?
A
An unsaturated fatty acid.
6
Q
How many molecular species of lipids are typically found in membranes?
A
Between 500 and 1000.
