Companion cells are the component of the xylem.
Important Questions on Life Processes
Refer to the following figure of phloem tissue.
Which of the following statements correctly describes the relationship between cells Y and Z?
Fill in the blank with the correct answer from the bracket.
The loss of water from the aerial parts of the plants in the form of water vapour is called _____. (guttation, bleeding, transpiration)
Transpiration has been described as a 'necessary evil' because it is inevitable, but potentially harmful. Which of the following statements describe this?
(i) It causes absorption of mineral salts.
(ii) It regulates plant temperature.
(iii) It causes wilting and injury in plants
(iv) It causes ascent of sap.
Fill in the blank with the correct answer from the bracket.
In symplast pathway, the water is transmitted from one cell to the other cell through _____. (cell wall, cell membrane, plasmodesmata)
