Lipids Flashcards
1
Q
What elements do lipids contain?
A
Carbon, hydrogen and oxygen atoms
2
Q
Are lipids polar or non-polar?
A
Non-polar and hydrophobic
3
Q
Different types of lipids
A
Triglycerides (fats and oils), phospholipids, steroids and waxes
4
Q
Monomers of triglycerides
A
Glycerol and 3 fatty acids
5
Q
What type of bond forms in triglycerides?
A
Ester bonds
6
Q
Roles of triglycerides
A
- Good energy reserve
- Insulation
- buoyancy
- source of metabolic water
- Protecting of vital organs
7
Q
What are phospholipids?
A
Made from glycerol molecule linked to 2 fatty acids and 1 phosphate group.
8
Q
Are phospholipids polar?
A
They have a polar phosphate head
9
Q
Function of phospholipids
A
Building block of cell membranes
10
Q
How many water molecules released during formation of phospholipids and triglycerides
A
Phospholipids - 2
triglycerides - 3
