Q. No.In grasses certain adaxial epidermal cells along the vein modify themselves into large, empty, colourless cells called ________.
| 1. | Bark |
| 2. | Bulliform cells |
| 3. | Bundle sheath cells |
| 4. | Spongy mesophyll cells |
Bulliform cells help in
| 1. | Heat resistance |
| 2. | Minimizing water loss |
| 3. | Maintaining ion balance |
| 4. | Mineral acquisition |
The cambium is generally more active on the _________ side than the _________ side.
(1) Inner, outer
(2) Outer, inner
(3) Radial, inner
(4) Radial, outer
The tissue involved in secondary growth are
(1) Vascular cambium
(2) Cork cambium
(3) Pith
(4) Both A and B
The similar size of vascular bundle in monocot leaf is due to
| 1. | Reticulate venation |
| 2. | Parallel venation |
| 3. | Branched venation |
| 4. | Radial venation |
The primary and secondary phloem gets gradually crushed due to the continued formation and accumulation of _________.
(1) Secondary xylem
(2) Resin
(3) Wax
(4) Bark
In monocot leaf
1.
Stomata is present on both surface of epidermis
2.
Mesophyll is not differentiated into palisade and spongy parenchyma
3.
There is no parenchyma
4.
Both 1 and 2
| 1. | Stomata is present on both surface of epidermis |
| 2. | Mesophyll is not differentiated into palisade and spongy parenchyma |
| 3. | There is no parenchyma |
| 4. | Both 1 and 2 |
When cambial ring becomes active, the cells cut off toward pith mature into
(1) Primary xylem
(2) Secondary xylem
(3) Primary phloem
(4) Secondary phloem
When cambial rings become active and the cells cut off towards periphery mature into
(1) Secondary phloem
(2) Primary phloem
(3) Primary xylem
(4) Secondary xylem
In dicot stem the cells of cambium present between primary xylem and primary phloem is the ___________.
(1) Intrafascicular cambium
(2) Interfascicular cambium
(3) Metafascicular cambium
(4) Radial cambium
© 2025 GoodEd Technologies Pvt. Ltd.