Q. No.Choose odd with respect to collenchyma
| 1. | Living mechanical tissue |
| 2. | Intercellular space is absent in angular type |
| 3. | Thickening of the wall is due to deposition of lignin |
| 4. | Found in hypodermis of dicot stem |
Select incorrect statements from the given below:
| (i) | Endodermis with Casparian strips are found in the dicot stem. |
| (ii) | The endodermis is a part of the stele. |
| (iii) | Open vascular bundles are found in some monocots. |
| (iv) | Bulliform cells are found in the upper epidermis in the isobilateral leaf. |
| 1. | (i) and (ii) |
| 2. | (ii) and (iii) |
| 3. | (i), (ii) and (iii) |
| 4. | Only (iv) |
Select incorrect statement with respect to the anatomy of monocot stem
| 1. | Parenchymatous ground tissue is extended from the bottom of hypodermis to center |
| 2. | Hypodermis is made of thick-walled living mechanical tissue |
| 3. | Vascular bundles are conjoint, collateral and closed with endarch xylem |
| 4. | Pith is absent |
In parenchyma, all cells are isodiametric and
| 1. | Thin-walled |
| 2. | Thick-walled |
| 3. | Lignified-walled |
| 4. | Devoid of intercellular spaces |
In which character an isobilateral leaf differs from the dorsiventral leaf?
| 1. | Scattered vascular bundles |
| 2. | Undifferentiated mesophylls |
| 3. | Absence of stomata with guard cells |
| 4. | Conjoint, collateral, and closed vascular bundle |
Tissue which provides mechanical strength and flexibility to young dicot stem is present in
| 1. | Pith | 2. | Endodermis |
| 3. | Hypodermis | 4. | Cortex |
The ground tissue system is constituted by all off these, except
| 1. | Medullary rays | 2. | Pericycle |
| 3. | Mesophyll | 4. | Xylem |
Conjoint, collateral, closed vascular bundles without phloem parenchyma are found in plants which have
| 1. | Differentiated ground tissue in the stem |
| 2. | Dedifferentiated pericyclic structure in the mature root |
| 3. | Sclerenchymatous hypodermis in stem |
| 4. | Developed pith in stem |
Which of the following is correct with respect to lenticels?
| a. | Phellogen forms parenchymatous cells on the outer side |
| b. | It is a lens-shaped opening |
| c. | Helps in exchange of gases |
| d. | Present mostly in woody trees |
1. a & b correct
2. c & d correct
3. b, c, & d correct
4. All are correct
In a leaf, oval cells with large intercellular spaces and radially arranged columnar cells without intercellular spaces are placed respectively towards
| 1. | Adaxial and abaxial epidermis |
| 2. | Abaxial and adaxial epidermis |
| 3. | Abaxial and abaxial epidermis |
| 4. | Lower and abaxial epidermis |
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