1. Trichomes are
a) Epidermal hair of stem
b) Either soft or stiff
c) Branched or unbranched
d) All of these
Explanation: All of these
2. Select the incorrect statement from the following:
a) Trichomes help in preventing water loss due to transpiration
b) Cuticle prevents loss of water
c) Cuticle is absent in roots
d) Epidermis is made up of elongated, loosely arranged cell, which forms continuous layer
Explanation: "Epidermis is made up of elongated, loosely arranged cell, which forms continuous layer". This is incorrect.
3. Ground tissue is made up of
a) Parenchyma
b) Collenchyma
c) Sclerenchyma
d) All of these
Explanation: All of these
4. Parenchymatous cells are usually present in
a) Cortex, pericycle
b) Pith and medullary rays
c) Primary stem and roots
d) All of these
Explanation: All of these
5. Thin-walled chloroplast containing mesophyll cells are present in
a) Root
b) Stem
c) Leaf
d) All of these
Explanation: Thin-walled chloroplast containing mesophyll cells are present in leaf.
6. Vascular system consists of
a) Simple tissue
b) Complex tissue
c) Xylem
d) Phloem
Explanation: Vascular system consists of complex tissue
7. Closed vascular bundle is present in
a) Monocot
b) Dicot
c) Both (a) and (b)
d) none of these
Explanation: Closed vascular bundle is present in monocot
8. Conjoint vascular bundle is present in
a) Monocot stem
b) Dicot stem
c) Leaf
d) All of these
Explanation: All of these
9. A root hair is formed by
a) Epidermal cell
b) Endodermal cell
c) Cortical cell
d) Pericycle cell
Explanation: A root hair is formed by epidermal cell.
10. Epidermal outgrowths are known as
a) Stomata
b) Leaves
c) Trichomes
d) Flower buds
Explanation: Epidermal outgrowths are known as Trichomes.