Some years ago Causton found that biological polymers called mucopolysaccharides could exclude protein from some surfaces.

First, the hyphae secrete enzymes onto or into the food source, which break down biological polymers into smaller units such as monomers.

Lignin and suberin are the only known biological polymers that are irregular.

Antigenic molecules, normally being "large" biological polymers, usually present several surface features that can act as points of interaction for specific antibodies.

Both biological and synthetic polymers have their strengths and weaknesses.

There are advantages to using biological polymers over synthetic polymers.

Despite all these disadvantages, some of which can be overcome, biological polymers still prove to be the optimal choice in many situations.

These biological polymers are indispensable for the organism to create barriers and stable structures.

Other biological polymers such as polysaccharides can also be considered to have a primary structure, although the usage is not standard.

Polysaccharides is an important class of biological polymers.