. Elementary biology; an introduction to the science of life . Fig. 27. Digestion by bacteria The organism a lying on a solid b, which may serve as food, secretes an enzym. or ferment, which passes out of the cell e and changes the material to a liquid /. This is absorbed into the cell by osmosis, f cell wall, by osmosis, a liquid containing a ferment capable of digesting the solid or insoluble food material. The liquid re- sulting from the digestion is absorbed by osmosis. This may account for the fact that when meat or cheese rots, it becom.es fluid. The rotting in such cases is the work of

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