Fats serve as the best storage of spare energy because

Consider the following four statements $(a-d)$ and select the option which includes all the correct ones only $:-$
$(a)$ Lipids are generally water insoluble.
$(b)$ The $R$ group could be a methyl $(-CH_3)$ or ethyl $(-C_2H_5)$ or higher number of $-CH_2$ groups ($1$ carbon to $19$ carbons) in fatty acids.
$(c)$ Palmitic acid has $16$ carbons including the carboxyl carbon.
$(d)$ Arachidonic acid has $21$ carbon atoms including the carboxyl carbon.

Structurally,what are cortisone and cholesterol known as?

The hydrolysis of lipids produces ...... .

Assertion $A$: Lipoproteins are complex lipids.
Reason $R$: The structure of a lipoprotein is formed by fatty acids,alcohol,and a non-lipid component.
Which option is correct for Assertion $A$ and Reason $R$?

Which of the following is not a polymeric substance?