Question

Write any three anatomical differences between monocot root and dicot root.

Answer 1

Angiosperms are also known as the flowering plants. Flowering plants are classified into two major classes namely, the monocots and the dicots on the basis of the number of cotyledons present in the seed of a plant.

Complete answer:
The structures responsible for providing nutrients and thus energy to the growing plants are referred to as the cotyledons. Monocots as the name suggests, composed of one cotyledon while the dicots as per the name, has two cotyledons. Examples of monocots include palms, lilies, sugarcane, orchid, barley, oat, rice, wheat and bamboo (grass species) while Petunias, beaches, daisies, ashes, maples, poplars, oaks and beans are some of the examples of dicotyledons.
The three anatomical differences between monocot root and dicot root are as follows:

Dicot roots	Monocot roots
Tetrarch Xylem is present.	Polyarch Xylem is present.
Usually the pith is absent.	A large pith is usually present at the center.
In the cross section, usually the polygonal metaxylem vessels are present.	In the cross section, usually the circular metaxylem vessels are present.

Another major difference is that the dicot roots are generally characterized by the secondary growth while there is no secondary growth seen in monocot roots.
Note: Flowering plants possess an efficient system for transport of water, nutrients, food and minerals all through the plant therefore they are sometimes also referred to as the vascular plants. Vascular tissue, dermal tissue and ground tissue are the three types of tissues present in these plants. Monocotyledons are also commonly known as the monocots. These include flowering plants that are either grasses or grass-like. The seeds of monocotyledon plants usually contain one cotyledon or only one embryonic leaf. However, Dicotyledons are also commonly known as the dicots. The seeds of dicotyledonous plants usually contain two cotyledons.