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Transportation And Respiration Quiz : 10 Biology MCQs

Transportation and respiration quiz

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A group of more than one type of cells having common origin and working together as a unit is called complex permanent tissue present in plants. Xylem and phloem are complex tissues. Both these tissues are together called Vascular tissue. Xylem is a conducting tissue and is composed of four elements (i) tracheids (ii) vessels (iii) wood fibres and (iv) wood parenchyma .The function of xylem is to conduct water and mineral salts upwards from the root to the leaf and give mechanical strength to the plant body.

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