Question

For diffusion or osmosis to take place in root cells ________ is essential.

• A. only solute
• B. only solvent
• C. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> solute concentration difference
• D. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> temperature difference

Answer 1

The correct option is C <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> solute concentration difference

Osmosis is the movement of water molecules from a lower concentration solution to a higher concentration solution through a semi permeable membrane.
Therefore in plants always a concentration gradient or difference in concentration between root cell and its surroundings is required.