Lipids

Which one of the following structural formulae of two organic compounds are correctly identified along with its related function? 

Following are the statements with reference to 'lipids'.

(a)	Lipids having only single bonds are called unsaturated fatty acids.
(b)	Lecithin is a phospholipid.
(c)	Trihydroxy propane is glycerol.
(d)	Palmitic acid has 20 carbon atoms including carboxyl carbon.
(e)	Arachidonic acid has 16 carbon atoms.

You have to choose the correct statements out of the five given above. Choose the correct answer from the options given below:

1.	(b) and (c) only	2.	(b) and (e) only
3.	(a) and (b) only	4.	(c) and (d) only

Read the following statements on lipids and find out correct set of statements:

a:	Lecithin found in the plasma membrane is a glycolipid.
b:	Saturated fatty acids possess one or more c=c bonds.
c:	Gingely oil has lower melting point, hence remains as oil in winter.
d:	Lipids are generally insoluble in water but soluble in some organic solvents.
e:	When fatty acid is esterified with glycerol, monoglycerides are formed.

Choose the correct answer from the options given below:
1. (a), (b) and (d) only
2. (a), (b) and (c) only
3. (a), (d) and (e) only
4. (c), (d) and (e) only

Lecithin, a small molecular weight organic compound found in living tissues, is an example of:
1. Phospholipids
2. Glycerides
3. Carbohydrates
4. Amino acids