Which of the following examples does not contain a carboxyl or keto group?

Why are lipids not considered as macromolecules?

Oils are:

How do lipids differ from carbohydrates?

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 $C=C$ bonds.
$(c)$ Gingely oil has a 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:

Beeswax is soluble in which of the following?