What are the three differences between rna and dna?

    RNA is a single-stranded nucleic acid.

   RNA has a ribose sugar instead of a deoxyribose sugar like DNA.

   RNA nucleotides have a uracil base instead of thymine.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.