Cellulase is an enzyme that breaks down cellulose, a complex carbohydrate found in plant cell walls.
Fungi are one of the primary sources of cellulase in nature. Many fungi produce cellulase as part of their natural decomposition processes, aiding in the breakdown of plant material. Therefore, the cellulase in the experiment most likely came from fungi.
Bacteria also produces cellulase, so it would be interesting to analyze if the organism in question of the experiment is a fungi or a bacteria.
