Membrane-bound organelles would be found in which type of cells

Eukaryotic cells

Explanation: Prokaryotic cells are single celled and have no membrane bound nucleus or other organelles. Eukaryotic cells have a membrane bound nucleus.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

the backbone of the dna and rna compound is sugar phosphate.