Statement I: | Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body. |
Statement II: | Exarch condition is the most common feature of the root system. |
1. | (A), (B), (D), (C) | 2. | (B), (A), (C), (D) |
3. | (A), (B), (C), (D) | 4. | (B), (A), (D), (C) |
Read the different components from I to IV in the list given below and tell the correct order of the components with reference to their arrangement from the outer side to the inner side in a woody dicot stem.
I. | Secondary Cortex |
II. | Wood |
III. | Secondary phloem |
IV. | Phellem |
The correct order is:
1. | III, IV, II, I | 2. | I, II, IV, III |
3. | IV, I, III, II | 4. | IV, III, I, II |
Anatomically, fairly old dicotyledonous root is distinguished from the dicotyledonous stem by:
1. absence of secondary xylem
2. absence of secondary phloem
3. presence of cortex
4. position of protoxylem