After heavy rainfall with poor drainage,leaves of many plants wilt due to

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.

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

The transport of gases,hormones,photosynthates,and organic solutes in plants is:

Water reaches xylem from root hairs by

Correct the following statements:
$(a)$ Cells shrink in hypotonic solutions and swell in hypertonic solutions.
$(b)$ Imbibition is a special type of diffusion when water is absorbed by solids—colloids—causing them to increase in volume.
$(c)$ Most of the water flow in the roots occurs via the symplast.