Question

Collenchyma tissue is present in
A. Dicot stem
B. Monocot stem
C. Dicot root
D. Flowers

Answer 1

Collenchyma is the living cells that form the tissues with thick cellular walls and they are elongated shapes and are mainly present in the structures, which have to be given strength to withstand the external pressure.

Complete answer:
Collenchyma is a cell and tissue type, in which the essential dividers are unevenly thickened and comprise of homogeneous, pretty much-prolonged living cells; it offers mechanical help to the plant organs where present. These cells are available at the outskirts of herbaceous stems, petioles, and in the veins of certain leaves.
They are also present in the flowering parts, fruits, and elevated roots. They normally possess the fringe layers of the cortex in dicotyledons and might be available just underneath the epidermis or under a couple of fringe layers of parenchyma. The major function of the collenchyma is to provide additional support for the plants to withstand external forces and also acts as mechanical tissue. With less or no space within their cells, they are stronger than the other tissues.
They might be available as a constant layer to shape the hypodermis. The cortex of the dicot stem is many-layered and separated into hypodermis and inward cortex. The hypodermis is found beneath the epidermis and is established with rakish collenchyma which is about three or five-layer.

Thus the correct answer is the option (A) dicot stem.

Note:
Collenchyma tissue is made out of extended cells with unpredictably thickened dividers. They offer auxiliary help, especially in developing shoots and leaves. The cells of collenchyma are generally living, and have just a thick essential cell divider composed of cellulose and gelatin. Collenchyma is an exceptionally specific supporting tissue. It is primarily present in stems, leaves, flower parts and is the fundamental supporting tissue in many developed eudicot leaves and some green stems. Roots infrequently have Collenchyma however Collenchyma may happen in the cortex of the root if the root is presented to light.