Question

The reticulate venation is commonly found in the leaves of-
A) Monocot plants
B) Dicot plants
C) Bryophytes
D) Thallophytes

Answer 1

The arrangement of tiny slender lines called veins in a leaf is called venation. There are typically two types of venations: reticulate and parallel. Reticulate venation is the irregular arrangement of veins over the entire lamina which forms a network. Venation in a leaf has one major function to carry water in a vascularized bundle and also carbohydrates for support of leaf.

Complete answer-
A) Monocot plants – reticulate venation mostly forms a web like structure which interconnects the veins in the leaf. Monocots like- maple trees, rose bushes, oak trees.
Option A is not the correct answer.
B) Dicot plants- dicot plants are divided formerly and the seed has two leaves or cotyledons. So, reticulate venation is likely to be seen in dicot plants more often.
Option B is the correct answer.
C) Bryophytes – bryophytes are liverworts and mosses which are non-vascularized plants. They are seedless, moist and small in comparison to other seed-bearing plants. They grow in bundle form.
Option C is not the correct answer.
D) Thallophytes- plants which hold a thallus are called thallophytes. They are considered to be in lower plants or simple plants.
Option D is not the correct answer.

Hence, Option B is the correct answer.

Note:
Parallel venation is aligned straight or parallel to both sides. The midrib of the leaf separates the veins from both sides. In reticulate, the networks are in a web form interconnecting with each other. Apart from functions in transporting water and nutrients, venation is used as preventive measures in some chronic diseases like- curling of leaves, cancer and senescence.