Describe how enzymes work, including the role of the enzyme substrate complex.
Enzymes lower the activation energy to speed up chemical reactions in cells. The enzyme-substrate complex provides an active site where reactants can be brought together to react.
They’re not “considered” polymers. They ARE polymers. Lipids are not considered to be polymers because they are not polymers. If you know, or can find, the meaning of the word “polymer,” this is quite evident.