Question

28
Plant Physiology and Metabolic
3. The cell wall is permeable and not semipermeable can be bent
deduced from the passage of water and mineral salte from
(a) Cortical cells to pericycle
(b) Pericycle to trachea
(c) Soil to periplasmic space of root hairs
(d) Root hairs to cortical cells​

Answer 1

Cell wall is dead and fully permeable. It cannot regulate the entry of solvent or solute molecules. This fact is established by the accumulation of water and mineral salts in the periplasmic space, which is the space between cell wall and cell membrane. If cell wall was semi or differentially permeable; mineral salts would not have accumulated in the periplasm.

so, the correct answer is 'Soil into periplasmic space of root hairs'