Here's why:

* Chitin is the primary structural component of fungal cell walls.

* Chitinase is an enzyme that specifically breaks down chitin.

Therefore, chitinase is crucial in processes like:

* Defense mechanisms: Some organisms use chitinase to defend against fungal infections.

* Biocontrol: Chitinase can be used as a biocontrol agent to combat fungal diseases in plants.

* Research: Scientists use chitinase to study fungal cell walls and develop new antifungal treatments.