Final answer:
The chemical differences between DNA and RNA make it easy for components in the cell to distinguish between them.
Step-by-step explanation:
The chemical differences that exist between DNA and RNA make it easy for the components in the cell to distinguish between them. Unlike DNA, RNA is a single-stranded molecule that consists of a sugar-phosphate backbone with bases attached to it. Additionally, RNA contains the base uracil (U) instead of thymine (T) found in DNA.