1. Xylem parenchyma stores
a) Starch
b) Fat
c) Tannins
d) All of these
Explanation: Xylem parenchyma stores starch, fat and tannis.
2. Phloem parenchyma stores
a) Resins
b) Latex
c) Mucilage
d) All of these
Explanation: Phloem parenchyma stores resins, latex and mucilage.
3. Select the incorrect statement from the following:
a) Vessel members are interconnected through perforations in their common walls.
b) Presence of vessel is a characteristic feature of angiosperms.
c) Radial conduction of water takes place by the ray parenchymatous cells.
d) Tracheids, vessel, xylem sclerenchyma and parenchyma are without protoplast.
Explanation: Tracheids, vessel, xylem sclerenchyma and parenchyma are without protoplast.
4. Protoplast is absent in all except
a) Tracheids
b) Vessels
c) Xylem sclerenchyma
d) Xylem parenchyma
Explanation: Protoplast is absent in all except xylem parenchyma
5. The primary xylem elements formed are called _________ and the secondary xylem formed
is called _________.
a) protoxylem, protoxylem
b) metaxylem, metaxylem
c) protoxylem, metaxylem
d) metaxylem, protoxylem
Explanation: The primary xylem elements formed are called protoxylem and the secondary xylem formed is called metaxylem.
6. In stem
a) Protoxylem lies towards pith (centre)
b) Metaxylem lies towards periphery of the organs
c) Endarch arrangement is present
d) All the above
Explanation: All the above
7. In root
a) Endarch arrangement is present
b) Exarch arrangement is present
c) Protoxylem lies towards the centre
d) Metaxylem lies towards the periphery
Explanation: Exarch arrangement is present
8. Phloem transports
a) Water
b) Mineral
c) Food materials
d) All of these
Explanation: Phloem transports food materials.
9. How many elements are composed in phloem in angiosperm?
a) 1
b) 2
c) 3
d) 4
Explanation: 4
10. Phloem is composed of all except
a) Sieve tube elements
b) Companion cells
c) Phloem parenchyma and sclerenchyma
d) Vessels
Explanation: Phloem is composed of all except vessels