So we use these sugars to basically carry out different types of reactions by using these ATP molecules that ultimately came from the glycolysis process, the breakdown of glucose. Now, the second role that sugars play is actually being present in nucleic acids such as RNA and DNA molecule. In fact, ATP adenosine triphosphate itself contains a ribose sugar. So we have these RNA DNA molecules, which are nucleic acids. And what that means is they basically play the role of storing genetic information and passing genetic information down from one individual to the offspring. Now, these RNA and DNA molecules basically contain sugar components.