Select Question Set:
Q. No.Secondary xylem and phloem in dicot stem are produced by?
1.
Apical meristems
2.
Vascular cambium
3.
Phellogen
4.
Axillary meristems
Subtopic: Â Dicot Stem |
 85%
Level 1: 80%+
NEET - 2018
Hints
Links
Subtopic: Â Anatomy of Root |
 77%
Level 2: 60%+
NEET - 2018
Hints
Links
Plants having little or no secondary growth are:
1. Grasses
2. Deciduous angiosperms
3. Conifers
4. Cycads
2. Deciduous angiosperms
3. Conifers
4. Cycads
 85%
Level 1: 80%+
NEET - 2018
Hints
Specialised epidermal cells surrounding the guard cells are called?
| 1. | subsidiary cells | 2. | bulliform cells |
| 3. | lenticels | 4. | complementary cells |
Subtopic: Â Epidermal Tissue System |
 93%
Level 1: 80%+
NEET - 2016
Hints
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 |
Subtopic: Â Dicot Stem |
 57%
Level 3: 35%-60%
NEET - 2015
Hints
Links
Vascular bundles in monocotyledons are considered closed because:
| 1. | a bundle sheath surrounds each bundle |
| 2. | cambium is absent |
| 3. | there are no vessels with perforations |
| 4. | xylem is surrounded all around by phloem |
Subtopic: Â Vascular Tissue System |
 90%
Level 1: 80%+
NEET - 2015
Hints
Age of a tree can be estimated by:
1. biomass
2. number of annual rings
3. diameter of its heartwood
4. its height and girth
 94%
Level 1: 80%+
AIPMT - 2013
Hints
Lenticels are involved in:
| 1. | Gaseous exchange | 2. | Food transfer |
| 3. | Photosynthesis | 4. | Transpiration |
Subtopic: Â Activity of Cork Cambium |
 94%
Level 1: 80%+
AIPMT - 2013
Hints
Interfascicular cambium develops from the cells of:
1. Xylem parenchyma
2. Endodermis
3. Pericycle
4. Medullary rays
 75%
Level 2: 60%+
AIPMT - 2013
Hints
Companion cells are closely associated with:
| 1. | Sieve elements | 2. | Vessel elements |
| 3. | Trichomes | 4. | Guard cells |
Subtopic: Â Complex Tissue: Phloem |
 93%
Level 1: 80%+
AIPMT - 2012
Hints
Select Question Set:
© 2025 GoodEd Technologies Pvt. Ltd.