Chapter 2: Tissues

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Q
Tissues

Question:

Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.

Answer:

Parenchyma is the most common simple permanent tissue. It consists of relatively unspecialized cells with thin cell walls that are made from cellulose. This tissue generally stores food.

Sclerenchyma is the tissue that makes the plant hard and stiff. Its cell wall is dead and thick due to the deposition of lignin. 

Collenchyma provides mechanical support and flexibility to the plants. It has a living cell wall that is irregularly thickened at the corners due to the deposition of pectin. 


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