Who proved the plasmolysis of sieve tubes?

In which type of solution should a cell be placed to induce plasmolysis?

The process of selective transmission through a semipermeable membrane is called:

$A$ cell increases in volume if the external medium is

In a plasmolysed cell,the space between the cell wall and the shrunken protoplast is occupied by

When a cell is placed in a hypertonic solution,it undergoes plasmolysis. What is found between the cell wall and the plasma membrane at that time?