PLANTS
PLANT TISSUE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Select all of the following that have a thick secondary cell wall
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Phloem
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Sclerenchyma
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Parenchyma
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Xylem
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Collenchyma
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Explanation:
Detailed explanation-1: -Xylem vessels, which conduct water from roots to aboveground tissues in vascular plants, are stiffened by secondary cell walls (SCWs).
Detailed explanation-2: -The xylem has a thick cell wall which has the deposition of the water-impermeable substance (lignin) whereas the phloem has a thin cell wall and made up of cellulose.
Detailed explanation-3: -Xylem and phloem are both vascular tissues but they differ in their cell walls, Xylem contains thick cell walls while the Phloem contains thin cell walls.
Detailed explanation-4: -The walls of xylem cells are lignified (strengthened with a substance called lignin ). This allows the xylem to withstand pressure changes as water moves through the plant.
There is 1 question to complete.