1. Both vessels and companion cells are absent in
a) Angiosperms
b) Pteridophyta
c) Gymnosperms
d) Both (b) and (c)
Explanation: Both (b) and (c)
2. The only plant cells without nuclei among the following are
a) Cambium cells
b) Cells of pericycle
c) Xylem parenchyma
d) Sieve tubes
Explanation: Sieve tubes
3.Vessels differ from tracheids
a) In being derived from single cell
b) In having vertical rows of cells with cross walls dissolved
c) In being alive
d) In helping in the conduction of water
Explanation: In having vertical rows of cells with cross walls dissolved
4. Companion cells are usually seen associated with
a) Fibres
b) Vessels
c) Tracheids
d) Sieve tubes
Explanation: Companion cells are usually seen associated with Sieve tubes.
5. Sieve tubes are better suited for translocation because they
a) Possess broader lumen and perforated cross walls
b) Are broader than long
c) Possess bordered pits
d) Possess no end walls
Explanation: Sieve tubes are better suited for translocation because they possess broader lumen and perforated cross walls.
6. Lignified cell wall is the characteristic feature of
a) Phloem cells
b) Epidermal cells
c) Cambial cells
d) Xylem cells
Explanation: Lignified cell wall is the characteristic feature of xylem cells
7. The chief function of sieve tube is
a) To translocate the organic materials manufactured in the leaves
b) To conduct minerals
c) To transport water from root to leaves
d) To help the plant in forming wood
Explanation: The chief function of sieve tube is to translocate the organic materials manufactured in the leaves.
8. The function of storage is performed by
a) Parenchyma
b) Sclerenchyma
c) Phloem
d) All of these
Explanation: The function of storage is performed by Parenchyma.
9. Which is present in the vascular bundles of gymnosperms?
a) Tracheids
b) Vessels
c) Companion cells
d) All of these
Explanation: Tracheids
10. How many types of tissue systems are present in plant depending on their structure and
function?
a) 1
b) 2
c) 3
d) 4
Explanation: 3