Most paper is formed from wood pulp. The main component of wood pulp is cellulose, a polymer made of many glucose molecules linked together. The cellulose molecules and their bonding to each other give paper its properties. About 33 % of all plant matter is cellulose.
The cellulose content of cotton is 90 % and that of wood is 40-50 %. For industrial use, cellulose is mainly obtained from woodjmlp and cotton. It is mainly used to produce-paper hoard and paper; to a smaller extent. It is converted into a wide variety of derivative products such as cellophane and rayon.