The organism which is most likely to be in an isotonic state is SALMONELLA
We can determine the state of each organism by relating the relating the salt concentration as a percentage of volume given in the chart to the percentage concentration of salt in the solution.
- Hypertonic solutions have greater concentration of solute than the solution. Therefore, given a solution concentration of 1% ; both AMOEBA and PLANKTON with solute concentration of 1.25 and 3.5% respectively are Hypertonic as they have greater percentage volume than the saline solution.
- Hypotonic solutions have lower concentration of solute than the solution. Therefore, PARAMECIUM would be classed as Hypotonic as it's solute percentage of 0.4% is lesser than than the salt concentration of 1%.
- Isotonic solutions have relatively equal amount of solute and solution. Here, SALMONELLA will most likely be ISOTONIC has it's salt concentration percentage, 0.9% is very close to the percentage of salt solution of 1%.
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