Question

Distinguish between intracellular and extracellular Digestion?

Answer 1

Intracellular Digestion	Extracellular Digestion
(a) Takes place in smaller animals (lower in classification) as food comprises only of basic molecules	Takes place in highly developed organisms where there is a need for separate digestive tract.
(b) Digestion takes place within a cell i.e. a single cell is enough to carry out all digestive activities	A separate group of cells or tissues is necessary for the sole purpose of digestion
(c) examples: porifera Coelenterataetc.,	example: chordates, hemichordates, molluscs etc.