| Tissue | Structural feature | Function |
| I. Collenchyma | Cell walls with high water content | Photosynthesis in young stems |
| II. Parenchyma | Suberized cell walls | Storage of food |
| III. Sclerenchyma | Lignified cell walls | Mechanical strength |
| IV. Digestive glands | Dense cytoplasm | Breaking the substrate without water |
A) I and II
B) II and III
C) I and IV
D) I and III
Correct Answer: D
Solution :
Collenchyma is a living tissue, which consists of non lignified, cellulosic, thick-walled cells. Each cell contains an average of about 60 to 70% of water. The primary function of collenchyma is to provide support but in young stems, due to the presence of chlorophyll, it also takes part in photosynthesis. Sclerenchyma tissue consists of lignified, thick walled cells. It provides mechanical support to the plant organs.
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