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.
Test your knowledge onÂ Transportation And Respiration Quiz : 10 Biology MCQs
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1. Question1 points
Turgidity of the cells is maintained byCorrectIncorrect
2. Question1 points
During rainy seasons doors made of wood generally swell up due toCorrectIncorrect
3. Question1 points
In a hypertonic solution, a cell water pressureCorrectIncorrect
4. Question1 points
The form and structure of growing cells are maintained because ofCorrectIncorrect
5. Question1 points
Which of the following is true concerning the water potential of a plant cell ?CorrectIncorrect
6. Question1 points
That the cell wall is permeable can be best deduced from the passage of water and mineral saltsCorrectIncorrect
7. Question1 points
The principal pathways by which water is translocated in angiosperms isCorrectIncorrect
8. Question1 points
Which of the following statements in incorrect ?CorrectIncorrect
9. Question1 points
A cell placed in a strong salt solution will shrink becauseCorrectIncorrect
10. Question1 points
In soil, water available to plants roots isCorrectIncorrect