PLANTS
PLANT TISSUE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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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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Detailed explanation-1: -Tracheids, vessels and xylem fibres are dead when mature.
Detailed explanation-2: -Xylem cells are dead at maturity so they cannot perform photosynthesis. Sugars are transported by phloem (from the leaves to other areas of the plant).
Detailed explanation-3: -It consists of vessels, tracheids, xylem fibres and xylem parenchyma. Except for xylem parenchyma, all other components of xylem tissue are dead. Xylem parenchyma contains parenchymatous cells having a fully functional nucleus and are capable of performing various life processes.
Detailed explanation-4: -The xylem contains a variety of elements-tracheids, vessels, xylem fibers, and xylem parenchyma. Xylem vessels always push water upwards and nutrients towards roots. Tracheids are dead tubular cells with tapering ends, vessels with thin elongated structures that have a tubular appearance, and no cytoplasm.
Detailed explanation-5: -The cells of xylem are dead at maturity and devoid of protoplasm except for xylem parenchyma cells, which are living cells.