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Question
Which of the following pairs contain lignin as a common structural component?
Which of the following pairs contain lignin as a common structural component?
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Solution
The correct option is C Sclerenchyma and tracheid
The secondary walls of sclerenchyma are lignified (contain lignin). Sometimes, primary cell walls are also lignified. The xylem consists of tracheary elements, xylem parenchyma cells, and xylem fibre cells. It consisting of dead, hollowed-out cells that form a system of pipes. The walls of xylem cells are lignified. This allows the xylem to withstand pressure changes as water moves through the plant.
Thus, the correct answer is option C.
The secondary walls of sclerenchyma are lignified (contain lignin). Sometimes, primary cell walls are also lignified.
The xylem consists of tracheary elements, xylem parenchyma cells, and xylem fibre cells. It consisting of dead, hollowed-out cells that form a system of pipes. The walls of xylem cells are lignified. This allows the xylem to withstand pressure changes as water moves through the plant.
Thus, the correct answer is option C.
Thus, the correct answer is option C.
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