Lipids

Question 1

What are lipids composed of

Answer 1

C,H,O

Question 2

Fat structure;

Answer 2

Glycerol(3c alcohol)+ fatty acid

Question 4

Saturated fats

Answer 4

All C bonded to H
- No C=C double bounds
- Long straight chain
-Most animal fat
-Solid at room temperature

Question 5

Unsaturated fats

Answer 5

C=C double bonds in the fatty acids
- plants and fish fats
- vegetable oils
-liquid at room temperature

Question 6

Phospholipids

Answer 6

Fatty acid tails=hydrophobic
PO4 head= hydrophilic

Question 7

Cholesterol

Answer 7

• important cell component
  -animal cell membranes
  -precursor of all other steroids
• include vertebrate sex hormones high level in blood may contribute to cardiovascular disease