Demonstration of osmosis in an egg


 
 
Concept Explanation
 

Demonstration of osmosis in an egg

Demonstration of osmosis in an egg1.    Take a beaker containing dilute Hydrochloric acid. Put an egg inside the beaker.2.    The hard shell of the egg, which is made up of calcium carbonate, gets dissolved. The egg is now enclosed by a thin outer semi - permeable membrane.3.    Put this deshelled egg in pure water. After a few minutes the egg swells up. The swelling is due to the movement of water into the egg by osmosis from the external environment.

 

Sample Questions
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Question : 1

Which of the following are correct :

(a) The hard shell of the egg is made up of chitin.

(b) To demonstrate the osmosis in egg we need to dip the egg in sodium chloride solution.

Right Option : D
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Explanation
Question : 2

Which of the following are correct :

(a) The hard shell of the egg is made up of calcium carbonate.

(b) To demonstrate the osmosis in egg we need to dip the egg in hydrochloric acid.

Right Option : C
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Explanation
Question : 3

After dipping the egg in hydrochloric acid, the hard shell of the egg, which is made up of _________________, gets dissolved.

Right Option : A
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Explanation
 
 
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