Lipids Flashcards
1
Q
describe the role of cholesterol in cell surface membrane in the human body
A
Cholesterol binds to phospholipid fatty acid tails
Reducing packing of membrane
Increasing the fluidity of the membrane
2
Q
explain how the structure of phospholipids allows them to form the bilayer of a plasma membrane
A
hydrophobic tails repelled by water
Hydrophilic part forms H bonds with water
3
Q
Name some functions of triglycerides in living organisms
A
- energy storage
- electrical insulation
- buoyancy
4
Q
why do lipids increase the buoyancy of aquatic animals
A
lipid is less dense than protein
