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 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
The tissue belonging to bark but not to periderm is
1. Vascular cambium
2. Secondary phloem
3. Phellem
4. Secondary cortex
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