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Subjects
Science State Board
Class 9
Organisation of tissues
Plant tissues
22.
Vascular tissues
Exercise condition:
3
m.
Choose the best answer:
1
.
Xylem parenchyma has a
Thick cell wall with pectin deposition
Thick cell wall with lignin deposition
Thin cell wall
Thick cell wall
2
.
Element of Xylem which is dead with long tubular structures
Companion cells
Sieve tubes
Tracheids
All the above
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