1 This produces a vertical stretch, where the $\,y$-values on the graph get multiplied by $\,2\,$.  Replace every $\,x\,$ by $\,5x\,$, giving the new equation [beautiful math coming... please be patient] $\,y=2{\text{e}}^{5x}\,$.
The human body contains many natural polymers, such as proteins and nucleic acids. Cellulose, another natural polymer, is the main structural component of plants. Most natural polymers are condensation polymers, and in their formation from monomers water is a by-product.
Cellulose fibers are a subset of man-made fibers, regenerated from natural cellulose. The cellulose comes from various sources: rayon from tree wood fiber, Modal from beech trees, bamboo fiber from bamboo, seacell from seaweed, etc.