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Answer: Tissue offers structural and mechanical strength, as well as demonstrating division of labour. Organs are made up of a collection of tissues in a multicellular organism. Simple tissues are made up of physically and functionally comparable cells. They are composed of only one sort of cell.
| Parenchyma | Collenchyma | Sclerenchyma |
| It is made up of live cells with thin walls | They are the most important mechanical material in young plants, especially dicot stems | It is made up of dead cells. |
| They work in the food storage industry. | It is made up of live cells with thin walls. | It is predominantly a mechanical tissue. |
| It has a thin cellular structure composed of cellulose. | It has an irregular cell wall composed of pectin & hemicellulose. | It has a lignin-based cell wall that is strong and thick. |
