Intracellular digestion |
Extracellular digestion |
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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. |
Define a taxon. Give some examples of taxa at different hierarchical levels.
What are the steps involved in formation of a root nodule?
Choose the correct answer among the following:
(a) Gastric juice contains
(i) pepsin, lipase and rennin
(ii) trypsin lipase and rennin
(iii) trypsin, pepsin and lipase
(iv) trypsin, pepsin and renin
(b) Succus entericus is the name given to
(i) a junction between ileum and large intestine
(ii) intestinal juice
(iii) swelling in the gut
(iv) appendix
Thanksss yar bacha leya
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