Hi ells, and thanks for the question. DNA itself is not made up of cells; cells are much bigger structures that you find DNA in. In fact, if you took all of the DNA inside a single cell and stretched it out from end to end, it would measure 2 meters!
DNA (which is short for deoxyribonucleic acid – bit of a mouthful!) is bascially a really big and complex type of molecule that’s made up of a repeating unit called a nucleotide. Nucleotides are made of sugars and phosphates, which themselves are made up of carbon, oxygen, hydrogen and phosphate molecules. Hope that helps!