B.1.5 Lipids Flashcards
1
Q
True or False : Lipids are insoluble
A
True
2
Q
When are lipids soluble?
A
In organic solvents such as alcohol and acetone
3
Q
What are the main groups of lipids?
A
Triglycerides and phospholipids
4
Q
Where can you find phospholipids?
A
Cell membrane
5
Q
Name 3 roles of lipids
A
Source of energy
Waterproofing
Insulation
Protection
6
Q
When are fats solid?
A
Room temperature
7
Q
Why are triglycerides called that?
A
Because they have three fatty acids combined with glycerol.
8
Q
What type of bond did a fatty acid form with glycerol
A
Ester
9
Q
What does hydrolysis of a triglyceride form?
A
Glycerol and three fatty acids
10
Q
What part of a phospholipid is hydrophilic?
A
Head
11
Q
What part of the phospholipid is hydrophobic?
A
Tail
12
Q
What is a molecule that had two ends that behave differently referred to being?
A
Polar
