Functions of the glycocalyx include all of the following EXCEPTGroup of answer choicesbiofilm formation.source of nutrition.binary fission.protection against dehydration.increased virulence.

The function that is NOT a role of the glycocalyx is binary fission.

Here's why:

1. Biofilm formation: The glycocalyx aids in the formation of biofilms, which are communities of microorganisms that stick to each other on a surface. These biofilms are often found in natural, industrial and hospital settings.

2. Source of nutrition: The glycocalyx can serve as a source of nutrition for the cell. It can store nutrients that the cell can use when resources are scarce.

3. Protection against dehydration: The glycocalyx helps to prevent the cell from drying out by trapping water molecules. This is particularly important for cells that live in dry environments.

4. Increased virulence: The glycocalyx can increase the virulence, or disease-causing ability, of certain bacteria. It can protect bacteria from the immune system and allow them to cause disease.

5. Binary fission: This is a type of asexual reproduction in which a cell divides into two identical cells. While this is a crucial process for bacteria, it is not a function of the glycocalyx.