| Column-I | Column-II | ||
| A. | Stele | I. | Innermost layer of cortex |
| B. | Endodermis | II. | Suberin |
| C. | Caesarian | III. | All the tissues exterior to vascular cambium |
| D. | Bark | IV. | All the tissues |
A) A-IV; B-I; C-II; D-III
B) A-III; B-II; C-I; D-IV
C) A-I; B-II; C-III; D-IV
D) A-IV; B-II; C-I; D-III
Correct Answer: A
Solution :
[a] A - Stele: It is the central core of the stem and root of a vascular plant, consisting of the vascular tissue (xylem and phloem) and associated supporting tissue. B - Endodermis: It is an inner layer of cells in the cortex of a root and of some stems, surrounding a vascular bundle. C - Casparian strips: It is a band of cell wall material deposited on the radial and transverse walls of the endodermis, and is chemically different from the rest of the cell wall - the cell wall being made of lignin and without suberin - whereas the casparian strip is made of suberin and sometimes lignin. D - Bark: Bark is the outermost layers of stems and roots of woody plants. Plants with bark include trees, woody vines, and shrubs.
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