Question

Vascular bundles are scattered in
A. Bryophytes
B. Dicot root
C. Dicot stem
D. Monocot stem

Answer 1

Hint: The fibrous root of the monocot is known as the monocot root. It has a lot of little fibre constructions coming out of it. They are connected in a vast network. They emerge from the stem's base. The taproot of the dicot contains a single primary root structure from which tiny fibres emerge. The number of xylem and phloem vessels in dicot roots ranges from \[2 - 5\], whereas in monocot roots, the number of xylem and phloem vessels exceeds \[8\]. The monocot root contains a high number of them.

Complete answer:
Option A: Because bryophytes lack a real vascular system, they are unable to take water and nutrients from the earth over long distances. Bryophytes differ from ferns and blooming plants because they lack this specialised mechanism.
So, option A is not correct.
Option B: The Dicot root contains radial vascular bundles. In the centre, there is a tiny parenchymatous pith. It's also possible that dicot roots don't have it. In the dicot root, there are \[2 - 6\] vascular bundles.
So, option B is not correct.
Option C: The vascular bundles in dicot stems are organised in a ring. This is analogous to the cambium's role in dicot roots. Within the vascular bundles, the xylem is inside the cambium ring and the phloem is outside the cambium ring, with sclerenchyma ground tissue in between.
So, option C is not correct.
Option D: The vascular bundles in monocot stems are scattered. The vascular bundles in dicot stems are organised in a ring.
So, option D is correct.

So, option D is the correct answer.

Note:
The vascular bundles can be used to tell the difference between a monocot and a dicot root. The monocot stem sample has scattered vascular bundles, while the dicot stem sample has radially present but fewer vascular bundles. The varieties of stem cuticles, as well as a single layer of epidermis, are present in both.