Chemistry go side by side with biology in living organisms.
Explanation:
Biology is the study of life and contain all living organisms. In the basic, all living organisms are composed of chemical compounds and elements. So if we want to study biology basics you have to study the chemistry.
Example; If I want to study carbohydrates i have to know about monosaccharides which comprises of carbon, hydrogen and oxygen. So, i should know the chemical properties of carbon, hydrogen and oxygen. I should also have knowledge about how glycosidic bond is formed between monosacharides.
Appart from these various chemical reactions occur in living organisms.
