Water reaches xylem from root hairs by

Which of the following factors affect the absorption of water by roots?

Xylem helps in the translocation of:

How do short-distance transport and long-distance transport occur in plants?
$I -$ By diffusion
$II -$ By translocation (xylem and phloem)
$III -$ By active transport of cytoplasmic streaming
Select the correct combination for short-distance transport and long-distance transport respectively.

By cutting the ring of phloem,which of the following processes is affected?

Which of the following statements are true or false?
$I.$ The positive hydrostatic pressure is called turgor pressure.
$II.$ Wall pressure is exerted to prevent the increase of protoplasm size.
$III.$ Diffusion is more rapid in liquids than in gases.
$IV.$ Diffusion of water through a semi-permeable membrane is called imbibition.
$V.$ Osmosis is the movement of a substance,which takes place along a diffusion gradient.