Anatomy Of Flowering Plants Question 77
Question: Match column-I with column-II and select the correct option from the codes given below.
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
Options:
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
Show Answer
Answer:
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.
BETA
