Ncert Exercises & Solutions

4. Distinguish between intracellular and extracellular digestion?

Intracellular digestion	Extracellular digestion
1. The digestion of food occurs within the cell.	1. The digestion occurs in the cavity of alimentary canal.
2. Digestive enzymes are secreted by the surrounding cytoplasm into the food vacuole.	2. Digestive enzymes are secreted by special cells into the cavity of elementary canal.
3. Digestive products are diffused into the cytoplasm.	3. Digestive products diffuse across the intestinal wall into various parts of the body.
4. It is a less efficient method.	4. It is a more efficient method of digestion.
5. It occurs in unicellular organisms.	5. It occurs in multicellular organisms.