How is it that cows are able to digest the cellulose in grass? cows produce a special enzyme called cellulase with the reticulum of their stomach cows have a rumen that is more acidic than the human stomach, allowing them to denature the cellulose cows have a stomach with 4 parts and combine this with regurgitation which gives them sufficient time to digest the cellulose the rumen of the cow's stomach host bacteria that produce an enzyme called cellulase to digest the cellulose Question 12 0.1 pts Could microbes from a cow's rumen be transferred into a human's stomach? yes, but a human would still need to use regurgitation to fully chew and digest grass no because the human stomach has a lower pH stomach and the microbes would denature. no because the human stomach contains enzymes which would digest the bacteria yes, but this could cause fermentation, gas, and bloating