Select the mismatched pair out of the following.a)Radial vascular bund...
When xylem surrounds the phloem tissue from all sides the vascular bundle is called as amphivasal vascular bundle. So, statement c is wrong.
Select the mismatched pair out of the following.a)Radial vascular bund...
Explanation:
In plants, vascular bundles are the conducting tissues that transport water, minerals, and nutrients throughout the plant. Vascular bundles consist of two main components: xylem and phloem. Xylem is responsible for the transport of water and minerals from the roots to the rest of the plant, while phloem is responsible for the transport of sugars and other organic compounds from the leaves to the rest of the plant.
Let's analyze each option to understand why option C is the mismatched pair:
a) Radial vascular bundle - Xylem and phloem on different radii:
In radial vascular bundles, xylem and phloem are arranged in different radii, meaning they are present in separate regions within the bundle. This arrangement allows for effective transport of water and nutrients throughout the plant.
b) Bicollateral vascular bundle - Phloem present on both sides of xylem:
In bicollateral vascular bundles, phloem is present on both sides of the xylem. This arrangement is common in dicotyledonous plants and allows for efficient transport of sugars and other organic compounds.
c) Amphivasal vascular bundle - Only phloem bundle surrounds xylem:
This is the mismatched pair. In amphivasal vascular bundles, both xylem and phloem are present in the same radius. The xylem is surrounded by the phloem, forming a concentric arrangement. This arrangement is common in gymnosperms and some dicotyledonous plants.
d) Conjoint vascular bundle - Xylem and phloem on the same radii:
In conjoint vascular bundles, xylem and phloem are present on the same radii, meaning they are adjacent to each other within the bundle. This arrangement is common in monocotyledonous plants and allows for efficient transport of water, minerals, and nutrients.
Therefore, the correct answer is option C, as amphivasal vascular bundles do not have only the phloem bundle surrounding the xylem.
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