What is the function of gelatinous sheath?

The function of gelatinous sheath:

1. The gelatinous sheath is found in cyanobacteria, also known as blue-green algae, and is made up of collagen.
2. The function of the gelatinous sheath is as follows:

1. It protects the cyanobacteria from predation by phagocytosis.
2. It helps to bind the cells together to form colonies.
3. It protects the cells from drying.
4. It helps in cell motility.
5. It creates a microenvironment to provide the cells with easy access to nutrients.