Plant Anatomy
1) Which one produces primary tissues?
A) Apical meristem
B) Root apical meristem
C) Shoot apical meristem
D) Lateral meristem
Answer A) Apical meristem
Apical meristem consists of root apical meristem and shoot apical meristem.
2) Secondary tissues are produced by all except -
A) Fascicular cambium
B) Interfascicular cambium
C) Apical meristem
D) Phellogen
Answer C) Apical meristem
Apical meristem produces primary tissues
3) Secondary tissues of a plant -
A) Add to the length of roots and shoots
B) Add to the diameter of existing roots and shoots
C) Are found only in the embryo
D) Are found only in the seedling
Answer B) Add to the diameter of existing roots and shoots
Secondary growth is seen in dicots and is absent in monocots.Secondary tissues produces wood in older dicot plants
4) Grass stem elongates after initial growth due to -
A) Lateral meristem
B) Secondary meristem
C) Intercalary meristem
D) Apical meristem
Answer C) Intercalary meristem
Intercalary meristem regenerate the plant parts removed by grazing herbivores.
5) Which of the following statements is incorrect about sclereids (stone cells)
A) Variously shaped
B) Highly thickened+ lignified cell wall and lumen is narrow
C) Commonly found in the fruits, wall of nuts, seed coats of legumes and leaves
D) They are types of parenchyma
Answer D) They are types of parenchyma
They are types of sclerenchyma.
6) Conducting cells called ___ elements are the part of xylem where water and minerals are transported
A) Tracheary
B) Vascular
C) Vessel
D) Phloem
Answer A) Tracheary
Both tracheids and vessels are together called as tracheary cells.
7) Which of the following statements is incorrect about companion cell?
A) It is a specialised parenchymatous cell
B) Its nucleus controls the function of sieve tube
C) It helps in maintaining the pressure gradient in sieve tube
D) It is present in all vascular plants having phloem
Answer C) Howrah
Sieve tube elements are absent in gymnosperms and pteridophytes
8) On the basis of location and function, how many types of the tissue system are found in vascular- plants
A) Two
B) Three
C) Four
D) Five
Answer B) Three
Epidermal,ground and vascular tissue system
9) In the development of a root, the protoderm gives rise to the -
A) Cortex
B) Root hair
C) Endodermis
D) Pith
Answer B) Root hair
Root hair is wlongation of epidermal cells
10) Vascular bundle having cambium between the xylem and phloem is called -
A) Close vascular bundle
B) Open vascular bundle
C) Conjoint vascular bundle
D) Radial vascular bundle
Answer B) Open vascular bundle
Since it is open to secondary growth it is called open vascular bundle.
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