31. Which tissue provides mechanical Strength as well as bayouncy support to the plant ?
A. Sclerenchyma
B. Meristem
C. Parenchyma
D. Chlorenchyma
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32. Which tissue is always absent in root ?
A. Sclerenchyma
B. Meristematic
C. Parenchyma
D. Collenchyma
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33. Which tissue is absent in monocot ?
A. Meristem
B. Xylem
C. Collenchyma
D. Phloem
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34. Which simple permanent tissue is formed of dead cells. ?
A. Collenchyma
B. Sclerenchyma
C. Aerenchyma
D. Xylem
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35. Stele remain covered by
A. Pericycle
B. Cortex
C. Endodermis
D. Conjuctive tissue
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36. Which tissue is responsible for the increase in the length of the plant ?
A. Lateral meristem
B. Apical meristem
C. Intercalary meristem
D. Cambium
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37. The dead element of the phloem is
A. Sieve cells
B. Companion cells
C. Sieve tube
D. Phloem fibre
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38. Which cells regulate the function of sieve tube ?
A. Guard cells
B. Passage cells
C. Companion cells
D. Bulliform cells
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39. Root hair is always
A. Very long
B. Multi cellular
C. Cuticularized
D. Unicellular
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40. The central Region of the stem and root is known as
A. Pericycle
B. Medulla (pith)
C. Endodermis
D. Cortex
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