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Tissues — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceTissues4 Marks
Question
Why are xylem and phloem called complex tissues? How are they different from one other?
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Answer

Both xylem and phloem consist of more than one type of cells, which coordinate to perform a common function.
Xylem
Phloem
Consists of tracheids, vessels, xylem, parenchyma and xylem fibers.
Consist of sieve tubes, comanion cell, phloem parenchyma and phloem fibers.
They transport water and minerals vertically from soli to parts of plant.
They transport parensport food from leaves tp other parts of the plant.
Most of the cells except xylem parenchyma are dead cells.
Most of the cells except phloem fiberes are living cells.

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