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 |
You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two?
1. | Secondary xylem | 2. | Secondary phloem |
3. | Protoxylem | 4. | Cortical cells |
In barley stem, vascular bundles are:
1. open and scattered
2. closed and scattered
3. open and in a ring
4. closed and radial
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