In its broadest sense, intracellular digestion<span> is the breakdown of substances within the cytoplasm of a cell. ...</span>Intracellular digestion<span> can also refer to the process in which animals that lack a </span>digestive<span> tract bring food items into the cell for the purposes of </span>digestion<span> for nutritional needs.
</span>Extracellular digestion<span> is a process in which saprobionts feed by secreting enzymes through the cell membrane onto the food. The enzymes catalyze the </span>digestion<span> of the food into molecules small enough to be taken up by passive diffusion, transport or phagocytosis.</span>
