Ribonucleic acid ,or RNA, is one of the three major macromolecules (along with DNA and proteins) that are essential for all known forms of life. Like DNA, RNA is made up of a long chain of components called nucleotides.
The basic building block of any substance is the atom. Every element and compound is made up of one or more atoms. In making up of the atom an atom is made up of only one nucleus but can have several shells. Within the nucleus protons and neutrons are present.Every element has a specific number of protons.toms are tiny units of matter. All matter are made up of matter that occupies space and is made up of atoms. Atoms are the smallest particle of an element that can join up in whole numbers to form molecules.
The muscle fibers that make up skeletal muscle are called myofibers and consist of long, cylindrical, multinucleated cells. These cells are made of actin and myosin fibers repeated as a sacromere. Therefore skeletal muscle cells are long, cylindrical, multinucleated cells made of actin and myosin myofibers. They come together to create the fibers which make up tissues such as skeletal muscle tissue. 6 people found this useful.