Differentiate between intracellular,extracellular and intercellular..with example
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Intracellular digestionExtracellular digestion1.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.
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.
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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.
e.g. protozoans, spongens and coeleneterates.
e.g. coelentarates to chordates.
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.
e.g. protozoans, spongens and coeleneterates.
e.g. coelentarates to chordates.
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