Alist of the cell fibers from largest to smallest would read: 1. microtubules, intermediate filaments, microfilaments

A list of the cell fibers from largest to smallest would read:  

1. microtubules – is a microscopic tubular structure that is present in numbers in the cytoplasm of cells. These are usually aggregated to form complex structures. 

2. intermediate filaments – are cytoskeletal components that is usually found in the cells of vertebrate species and other organisms like plants, fungi, unicellular organisms. 

3. Microfilaments – are filamentous structures that can be found in the cytoplasm of eukaryotic cells and it will form part of the cytoskeletons. They are composed primarily of polymers of actin. But in cells, they usually interact with other proteins.

ability to bond woth oxygen

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.