INTRODUCTION
CELL ORGANELLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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shrink
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expand
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stay the same
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change color
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Detailed explanation-1: -Leave the egg in the water for 24 hours. Osmosis will occur; that is, the water will migrate from the side of the membrane where water molecules are abundant (i.e. outside the egg) to the side where water molecules are less abundant (inside the egg). After 24 hours, the egg will be plump again!
Detailed explanation-2: -When you put the egg into pure water, some of the water molecules from the solution move into the egg and the egg swells up. You can tell this happens easily if you use food coloring because the egg will change color.
Detailed explanation-3: -The egg will sink in the fresh water because it has greater density than the water. The egg will float in the salt water because when salt is added to water its density becomes greater than that of the egg. That makes the egg float. A simple definition of density is how heavy something is compared to its volume.