Question

Radial vascular bundle id found in:
a. Dicot stem only
b. Both dicot and monocot stem
c. Both dicot and monocot root
d. Monocot root only

Answer 1

Hint: Modest prearrangement of the xylem (which passes water and minerals) and phloem (which passes food material), which are divided by tissues that are non-conductive, is called the radial vascular bundle. When xylem and phloem are existing in coverings, they normally occupy a dissimilar amount of radii. It is the reason that they are called the radial vascular bundle.

Complete answer:
One of the characteristic features of roots in the presence of radial vascular bundles. As we mentioned above, the xylem and phloem are present on different radii are known as radial vascular bundles. There is an existence of parenchymatous cells in the middle of xylem and phloem bundles.

According to the research, it is said that these are normally seen in the roots of all vascular plants. A simple vascular bundle is the other name of the Radial vascular bundle. Thus, we can conclude that these are found in dicot roots and monocot roots.

Hence, the correct answer is option (C).

Additional information:
There are of four types of the vascular bundle:
- Collateral Bundle: In this type of vascular bundle, the phloem and xylem lie on the same radius that is at the periphery of the stem phloem is present and at the center xylem is present.
- Bicollateral Bundle: In this type of vascular bundle, phloem is present on both sides of the xylem.
- Concentric Bundle: These types of vascular bundles always surround the others and close.
- Radial Vascular Bundle: In this type of vascular bundle, the arrangement of xylem and phloem is simple and is separated by non-conductive tissues.

Note: As we know that the vascular bundle includes the combination of both xylem and phloem. We know that both the xylem and phloem exist together. However, they are separated by a special type of cell. Also, they have unique functions. Xylem is unidirectional. Besides, the phloem can move the food material in any direction. Thus, we can say that they have their roles and don't interfere with other's work.