Answer:
Esters present in them.
Step-by-step explanation:
Esters are organic compounds which are considered to be derivative of carboxylic acids. They are formed from reaction of carboxylic acid with a corresponding alcohol.
The general formula of an ester is RCOOR'.
The fruits generally get their odors and taste due to present of these natural esters.
For example: An ester called Ethyl-2-methyl butyrate is a responsible for taste and odor of fruits like apple, orange, strawberry, etc.