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Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.
Parenchyma | Collenchyma |
---|---|
(i) These are thin and cellulose walled cells. | (i) It is thick and bulky due to excess. Deposition of cellulose and pectic substances at the corners. |
(ii) It is a soft tissue. | (ii) It is soft as well as strong tissue. |
(iii) It performs the function of storing food. | (iii) It provides mechanical support. |
(iv) It is alive because it has a lot of intercellular space. | (iv) It does not have intercellular space. |
(v) It is found in almost all parts of the plants. | (v) It is not found in monocot plants. |
Collenchyma | Sclerenchyma |
---|---|
(i) This tissue is made up of living cells | (i) This tissue is made up of dead cells |
(ii) It is metabolically active in which protoplasm is found | (ii) These are dead cells and do not contain protoplasm. |
(iii) Due to the deposition of cellulose and pectic substances at their corners, they are bulky | (iii) Their cells have a uniform thickening and this is due to the presence of lignin. |
(iv) This tissue provides flexible firmness (or rigidity) | (iv) This tissue provides mechanical strength to all parts of plants. |
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