Question

students used eggs to observe the effect of osmosis on cells. in the experiment, the egg represented a typical cell. before beginning the experiment, students soaked the raw eggs overnight in vinegar to remove the shells. after the shells were removed, students obtained the mass of the shell - less eggs. students then soaked the eggs in a variety of solutions: vinegar, 10% salt water, corn syrup (kayro), and distilled water. after 24 hours, the eggs were removed from their respective solutions, dried off, and massed. the results are recorded in the data table provided. based on the results, what type of experimental solution is the vinegar? a the vinegar is hypotonic because it has less solutes than the egg. b the vinegar is isotonic because there is no mass change in the egg. c the vinegar is hypertonic because it has more solutes than the egg. d the vinegar is hypertonic because there is no mass change in the egg.

Explanation:

Osmosis causes water movement: hypotonic (water in, mass up), hypertonic (water out, mass down), isotonic (no mass change). Kayro Syrup (85→31) is hypertonic (mass down). Distilled Water (85→105) is hypotonic (mass up). Vinegar, as an experimental solution, would show no mass change (isotonic) since options B states isotonic with no mass change, which aligns with isotonic behavior.

Answer:

B. The vinegar is isotonic because there is no mass change in the egg.