Phloem loading and unloading process are respectively

What do you mean by pholem loading and unloading? which ion controls the turgidity of guard cell?

The loading and unloading of food (phloem sep) to and from the sieve tube cells is

What do you mean by pholem loading and unloading? Which metallic ion controls the turgidity of guard cell?

Vessels and companion cells are respectively present in the xylem and phloem of

Vessels and companion cells are respectively present in the xylum and phloem of

Between loading & unloading transport of sugar is assisted by turgor pressure that built up within phloem tissue.

Between loading & unloading transport of sugar is assisted by turgor pressure that built up within phloem tissue.