Question

Each of the following is true about plant pectins except

A) pectins are long unbranched polymers.
B) pectins form the matrix in which cellulose microfibrils are embedded.
C) pectins bind adjacent cell walls together.
D) pectins trap and bind water molecules.
E) pectins have a gel-like consistency.

Answer 1

Pectins are long unbranched polymers that form the matrix in which cellulose microfibrils are embedded. They also bind adjacent cell walls together and have a gel-like consistency.

Step-by-step explanation:

Pectins are long unbranched polymers that form the matrix in which cellulose microfibrils are embedded. They also bind adjacent cell walls together and have a gel-like consistency. However, pectins do not trap and bind water molecules. The water-absorbing property of cell walls is primarily due to hemicellulose and other carbohydrate components.