In which direction does water move?

Identify the correct statements from the following:
$I-$ Xylem transports only inorganic nutrients.
$II-$ Phloem transports only organic materials.
$III-$ There is an exchange of materials between xylem and phloem.
$IV-$ In xylem,inorganic nitrogen is present along with organic nitrogen in the form of amino acids and other components.
$V-$ Organic phosphorus and sulfur are also found in xylem tissue.

How do soluble substances migrate?

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.

In plants,active absorption usually does $NOT$ occur when . . . . . . .

Select the correct option from the following.