Question

In which part of a plant is the osmotic pressure highest and lowest and Why?

Answer 1

Answer:

osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane.

Answer 2

Osmotic pressure highest in mesophyll cell and lowest in roots.

Explanation:

• The dissolved solutes in the solution produce osmotic pressure. The osmotic pressure is the pressure that causes cells to gain water through the osmosis process.
• When a solution with a higher concentration of solute particles and thus a higher osmotic pressure comes into contact with a solution with a lower concentration of solute particles and thus a lower osmotic pressure, this solution will gain water.
• A plant obtains water from the soil via the soil solution, root cortex, vascular tissue, and leaf mesophyll pathways. It is obvious that the leaf mesophyll cells should have the highest osmotic pressure possible along this path in order to absorb water.