The effect of NaCl conc. on the activity of yeast cells
I did the experiment for this assessed practical today...
As the title suggests, you use different concentrations of NaCl as well as a solution with 0% NaCl (i.e. distilled water). Anyway, I know that the higher concentrations should inhibit yeast activity due to its osmotic effect, but I was wondering whether yeast ought to be more active in water alone compared to a weak salt solution - because I found it to be more active in a weak salt solution compared to plain water, but logically that doesn't make sense? Were my results just wrong?
As the title suggests, you use different concentrations of NaCl as well as a solution with 0% NaCl (i.e. distilled water). Anyway, I know that the higher concentrations should inhibit yeast activity due to its osmotic effect, but I was wondering whether yeast ought to be more active in water alone compared to a weak salt solution - because I found it to be more active in a weak salt solution compared to plain water, but logically that doesn't make sense? Were my results just wrong?
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