Lipids

Question 1

4-24 carbon atom with carboxyl group and methyl group.

function; precursor of triglycerides; source of energy

Answer 1

1. Fatty acids
   saturated fatty acid
   unsaturated fatty acid
   polyunsaturated fatty acid ( C=C bond)

Question 2

three fatty acids covalently bonded to a three carbon alcohol, glycerol.
function: energy storage : thermal insulation; filling space binding organ; cushion organ

Answer 2

2. Triglyceride

Question 3

phosphate group (said to be amphiphilic 両親媒性)
head is hydrophilic  tail is hydrophobic 
function : major component of cell member ; aid in fat digestion

Answer 3

3. phospholipid

Question 4

deriver from arachidonic acid ( a 20 carbon fatty acid)
hormone like chemical signals locally between cells.
includes prostaglandins
functions : inflammation, blood clotting, hormone action, labor contractions, control of blood vessel diameter

Answer 4

4. Eicosanoid エイコサノイド

Question 5

cholesterol is the “parent”

85% produced by our body, only 15% derived from our diet

Answer 5

5 steroid