
Which is true about the lipids?

Important Questions on Biomolecules

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 carbon atoms including carboxyl carbon.
(e) Arachidonic acid has carbon atoms.
Choose the correct answer from the options given below.

List-I | List-II | ||
(A) | Glycerol | (I) | Phospholipid |
(B) | Aromatic amino acid | (II) | Lower melting point |
(C) | Lecithin | (III) | Trihydroxypropane |
(D) | Gingelly oil | (IV) | Tryptophan |



Match List - I with List- II.
Column-I | Column-II | ||
(a) | Protein | (i) | double bonds |
(b) | Unsaturated fatty acid | (ii) | Phosphodiester bonds |
(c) | Nucleic acid | (iii) | Glycosidic bonds |
(d) | Polysaccharide | (iv) | Peptide bonds |



Read the following statements on lipids and find out the correct set of statements:
(a) Lecithin found in the plasma membrane is a glycolipid.
(b) Saturated fatty acids possess one or more bonds.
(c) Gingelly oil has a lower melting point, and hence remains as oil in winter.
(d) Lipids are generally insoluble in water but soluble in some organic solvents.
(e) When a fatty acid is esterified with gIycerol, monoglycerides are formed.
Choose the correct answer from the options given below:

Identify the following structure.

Represent the union of two sets by Venn diagram for each of the following.
is a prime number between and
is an odd number between and




Rancidity of fats is




Steroids



