The diagram given below belongs to -
1. Dicot stem having conjoint and collateral
vascular bundles
2. Monocot stem having conjoint and collateral
vascular bundles
3. Dicot root with polyarch condition
4. Monocot root with radial vascular bundles
Hypodermis in dicot stem is composed of
1. Parenchyma
2. Collenchyma
3. Sclerenchyma
4. Both 1. and 3.
The intrafascicular cambium
1. is a simple permanent tissue
2. is a meristematic tissue
3. is a complex permanent tissue
4. is secondary meristem
The conjuctive tissues lie between the
1. Xylem and phloem
2. Pericycle and Endodermis
3. Epidermis and endodermis
4. Epidermis and hypodermis
The feature which is common to both heartwood and sapwood is
1. Both are the regions of secondary xylem
2. Both are involved in the conduction of water.
3. Both comprise dead elements with the accumulation of aromatic compounds.
4. Both are located in the central layers of the stem.
In a dicot stem, the interfascicular cambium strip arises
1. Between xylem and phloem
2. From medullary rays
3. From pith
4. From pericycle
Column I | Column II |
A. Spring wood or early wood B. Autumn wood or late wood |
I. Lighter in colour II. Density high III. Density low IV. Darker in colour V. Larger number of xylary elements VI. Vessels with wider cavity VII. Lesser number of xylary elements VIII. Vessels with small cavity |
Which of the following matching is correct?
1. A – II, IV, VII, VIII; B – I, III, V, VI
2. A – I, II, VIII, VIII; B – III, IV, V, VI
3. A – I, III, V, VI; B – II, IV, VII, VIII
4. A – I, III, VII, VIII; B – II, IV, V, VI
Cylindrical meristem is term used for?
1. Lateral meristem.
2. Promeristem.
3. Intercalary meristem.
4. Primary meristem.
Which of the following function can be performed by
both parenchyma and collenchyma?
1. Storage.
2. Photosynthesis.
3. Secretion.
4. All.
The cells which give rise to a part of vascular cambium
in main root and laterals roots are
1. Parenchymatous cells of pericycle.
2. Collenchymatus cells of endodermis.
3. Parenchymatous cells of endodermis.
4. Meristematic cells of cortex.