Let's analyze each of the given statements about tonicity to determine which ones are true:
(i) Tonicity represents the relative measure of dissolved particles or solutes in a solution.
- This is a true statement because tonicity indeed measures the concentration of solutes in a solution relative to another solution, typically inside and outside of a cell.
(ii) The lower the tonicity, the greater the concentration of solute in the solution.
- This is a false statement. If the tonicity is lower, it implies a lesser concentration of solutes, not a greater one.
(iii) The lower the tonicity, the lesser the concentration of solute in the solution.
- This is a true statement. Lower tonicity means that the solution has fewer dissolved particles or solutes compared to another solution with higher tonicity.
Given this information:
- Statement (i) is true.
- Statement (ii) is false.
- Statement (iii) is true.
Therefore, the correct answer is:
Statements I and III
The option that matches this conclusion is:
Statements I and III
