- 1(current)
Q. No.A major characteristic of the monocot root is the presence of:
| 1. | Scattered vascular bundles |
| 2. | Vasculature without cambium |
| 3. | Cambium sandwiched between phloem and xylem along the radius |
| 4. | Open vascular bundles |
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 |
Compared to a dicot root, a monocot root has:
1. Many xylem bundles
2. Inconspicuous annual rings
3. Relatively thicker periderm
4. More abundant secondary xylem
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:
1. maturing
2. elongating
3. widening
4. differentiating
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
Passage cells are thin-walled cells found in:
| 1. | endodermis of roots facilitating rapid transport of water from cortex to pericycle |
| 2. | phloem elements that serve as entry points for substances for transport to other plant parts |
| 3. | testa of seeds to enable emergence of growing embryonic axis during seed germination |
| 4. | central region of style through which the pollen tube grows towards the ovary |
- 1(current)
Q. No.
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