Question

Biology students used raw eggs in an experiment on tonicity and osmosis. The students put their eggs into vinegar to remove the shells. The vinegar was used to remove the shell from the raw egg. What other effect(s) did the vinegar have on the egg?

Answer 1

The vinegar solution is hypotonic. It has a higher concentration of water (about 96%) and some of its water will move through the egg’s membrane into the egg in order to balance the water concentration levels on both sides of the membrane. This will cause the egg to become bigger in size. This movement of water through a selectively permeable membrane is known as osmosis.

Answer 2

Vinegar will also go inside of the egg due to it having a higher concentration of water than the egg does via osmosis.

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