NEET BIOLOGY

Detailed explanation-1: -In the dicot root, a well-developed pith is absent but in the case of monocot root, a well-developed pith is present. Again, in dicot roots, open vascular bundles are present in roots which are radially arranged. Therefore, the correct answer is option B. Well-developed pith.

Detailed explanation-2: -The pith is surrounded by a ring of xylem. The xylem is circled by a ring of phloem. It is very much evolved in monocot stem, monocot root and dicot stem. Pith is missing in established dicot roots.

Detailed explanation-3: -The primary function of both monocot and dicot root is to support the plant by anchoring it to the ground. Also, they aid in the absorption of water and minerals dissolved in the soil. The vascular system in the root then translocates the water and mineral to other parts of the plant.

Detailed explanation-4: -Unlike dicot roots, a monocot root has a pith in the stele. It also contains vascular bundles that are composed of both xylem and phloem.

Detailed explanation-5: -Solution : In a dicot stem, a well developed pith (made of parenchymatous or occasionally sclerenchymatous cells) is present whereas in a monocot stem, pith is absent.