1. Outside to inside the layer of monocot root are
a) Endodermis ‒ Epidermis ‒ Cortex ‒ Pith‒Vascular bundle‒Pericycle
b) Pith‒Epidermis‒Endodermis‒Cortex‒Pericycle‒Vascular bundle
c) Epidermis‒Cortex‒Endodermis‒Pericycle‒Vascular bundle‒Pith
d) Pericycle‒Vascular bundle‒Cortex‒Pith‒Epidermis‒Endodermis
Explanation: Epidermis‒Cortex‒Endodermis‒Pericycle‒Vascular bundle‒Pith
2. The following features belong to which option?
I. Epidermis may bear trachoma and few stomata.
II. Cortex is divided into three sub-zones.
III. Hypodermis is made up of collenchymas starch sheath.
IV. Pericycle above phloem is in the form of semilunar patches of sclerenchyma.
a) Dicot root
b) Dicot stem
c) Monocot root
d) Monocot stem
Explanation: Dicot stem
3. Select the incorrect statement among the following:
a) Ring arrangement of vascular bundle is a characteristic of dicot stem.
b) Phloem parenchyma is absent in monocot stem.
c) Monocots have sclerenchymatous hypodermis
d) In monocot, peripheral, vascular bundle, which are generally large and centrally located
are small and water containing cavities are present within the vascular bundle.
Explanation: "In monocot, peripheral, vascular bundle, which are generally large and centrally located are small and water containing cavities are present within the vascular bundle". This is incorrect.
4. Which of the following is correct about dorsiventral leaf?
a) The veins vary in thickness in the reticulate venation.
b) Palisade parenchyma is abaxially placed.
c) Abaxial surface bears no stomata.
d) The size of vascular bundles are independent on the size of veins.
Explanation: The veins vary in thickness in the reticulate venation.
5.Which of the following is incorrect about isobilateral leaf?
a) Stomata is present on both surfaces
b) Undifferentiated mesophyll
c) Nearly the same size of vascular bundle is present all over leaf
d) It is a monocot leaf
Explanation: Nearly the same size of vascular bundle is present all over leaf
6. The growth of the roots and stems in length with the help of apical meristem is called
a) Secondary growth
b) Primary growth
c) Both (a) and (b)
d) None of these
Explanation: The growth of the roots and stems in length with the help of apical meristem is called Primary growth.
7. Dicot plant exhibits an increase in girth. It is an example of
a) Secondary growth
b) Primary growth
c) Both (a) and (b)
d) None of these
Explanation: Secondary growth
8. Cells of cambium present between primary xylem and primary phloem forms
a) Interfascicular cambium
b) Intrafascicular cambium (fascicular cambium)
c) Cork cambium
d) None of these
Explanation: Intrafascicular cambium (fascicular cambium)
9. Vascular cambium is formed by
I. Interfascicular cambium
II. Intrafascicular cambium.
III. Cork cambium
a) I and III only
b) II and III only
c) I, II and III only
d) I and II only
Explanation: I and II only
10. Cambium wing forms cells towards
a) Inner side of ring
b) Outer side of ring
c) Both side of ring
d) They do not form cells
Explanation: Cambium wing forms cells towards both side of ring