Question 4
Distinguish between intracellular and extracellular digestion?
Intracellular digestion | Extracellular digestion | ||
1. | The digestion of food occurs within the cell. | 1. | The digestion occurs outside the cell 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 alimentary 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. |
