Read the following passage and answer the question(s) given below:
A few layers of cells beneath the epidermis are generally simple permanent tissue. Parenchyma is the most common simple permanent tissue. It consists of relatively unspecialized cells with thin cell walls. They are living cells. Collenchyma allows bending of various parts of the plant-like tendrils and stems of climbers without breaking. Sclerenchyma tissue makes the plant hard and stiff. We have seen the husk of a coconut. It is made of sclerenchymatous tissue. They are long and narrow as the walls are thickened due to lignin. The tissue is present in stems, around vascular bundles, in the veins of leaves and in the hard covering of seeds and nuts.
Question:
The flexibility in plants is due to
Flexibility in plants is due to collenchyma due to uneven thickening but not of lignin and isodiametric in shape. Sometimes, the cells may enclose small intercellular spaces.