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Q.
Which of the following tissues is not present in monocotyledons?
NTA AbhyasNTA Abhyas 2020
Solution:
In the given options-
The diagram(1) is Parenchyma
The diagram(2) is Collenchyma (which is the correct answer)
The diagram(3) is a fibre of sclerenchyma.
The diagram(4) is a sclereid of sclerenchyma.
Collenchyma is mostly present in dicotyledonous plants. It is present in the form of a homogeneous layer or in patches below the epidermis. These cells get thickened at the corners due to the deposition of cellulose, hemicellulose, or pectin.
Collenchyma is absent in monocotyledonous plants due to the early development of sclerenchyma. Sclerenchyma provides mechanical support in monocots. So there is no need for the development of collenchyma.
