Epiblema of roots is equivalent to
1. | Pericycle | 2. | Endodermis |
3. | Epidermis | 4. | Stele |
Identify the tissue system from among the following:
1. Parenchyma | 2. Xylem |
3. Epidermis | 4. Phloem |
Root hairs are:
1. unicellular extensions of subsidiary cells
2. unicellular elongations of epidermal cells
3. unicellular elongations of ground tissue cells
4. appendages of the cuticle
In a monocot stem:
1. | Each vascular bundle is surrounded by a sclerenchymatous bundle sheath |
2. | Ground tissue is very poorly developed |
3. | Vascular bundles are conjoint and open with water containing cavities |
4. | Phloem parenchyma is present |
The ring arrangement of vascular bundles is a characteristic feature of:
1. | Monocot stem | 2. | Dicot stem |
3. | Monocot root | 4. | Dicot root |
The hypodermis of a dicotyledonous stem:
1. | is parenchymatous and synthesizes and stores food |
2. | is collenchymatous and provides mechanical strength to the young stem |
3. | is sclerenchymatous and provides mechanical strength to the young stem |
4. | is parenchymatous and provides mechanical strength to the young stem |
Monocot root anatomy is different from the anatomy of dicot root in all the following aspects except:
1. More developed pith
2. Polyarch vascular bundles
3. Absence of secondary growth
4. Presence of multicellular root hairs
The term ‘stele’in a dicot root does not include:
1. | Endodermis | 2. | Pericycle |
3. | Vascular bundles | 4. | Pith |
Casparian strips are:
1. | waxy deposition of suberin on only the tangential walls of the endodermal cells |
2. | waxy deposition of suberin on only the radial walls of the endodermal cells |
3. | waxy deposition of suberin on both tangential and radial walls of the endodermal cells |
4. | waxy deposition of lignin on both tangential and radial walls of the endodermal cells |
In conjoint type of vascular bundles:
I: | xylem and phloem are jointly situated on the same radius of vascular bundles. |
II: | xylem is usually located on the outer side of the phloem. |
1. Only I is correct | 2. Only II is correct |
3. Both are correct | 4. Both are incorrect |