Give reason: a) Skin of our finger shrinks when we wash clothes for a long time. b) Person taking concentrated solution of salt, vomits after sometime. c) After adding salt to the vegetables during cooking vegetable releases water.
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Ans a.) skin of our fingers shrink when it is in contact with water for a long time to increase the friction between things we hold in our hands as water decreases friction.The shrinking of the the skin increases the roughness of the skin making it more rough.It allows us to hold things in water easily without slipping them
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Hey there,
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Q-) Why skin of our finger shrinks when we wash clothes for a long time?
A-) Sorry to say but there is no proven scientific fact explaining this, but according to a popular explanation, while washing clothes we use water concentrated with detergents, this decreases the concentration of water in the bucket, this draws out some water from the cells of our skin by osmosis resulting in shrinkage of our finger tips. But this theory is also considered wrong due to the fact that skin cells are impermeable.
Whatever the reason maybe, it is proven that shrinking of finger tips enhances our grip.
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Q-) Why person taking concentrated solution of salt, vomits after sometime?
A-) Taking concentrated salt solution increases the osmotic pressure of the solution present in the stomach, this draws water from surrounding cells. Due to which our body is forced to vomit the solution.
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Q-) Why after adding salt to the vegetables during cooking vegetable releases water?
A-) Same explanation, this increases the osmotic pressure of the surrounding solution of vegetable this forces vegetable to lose water through osmosis.
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Hope it helps ^_^
_____________________________
Q-) Why skin of our finger shrinks when we wash clothes for a long time?
A-) Sorry to say but there is no proven scientific fact explaining this, but according to a popular explanation, while washing clothes we use water concentrated with detergents, this decreases the concentration of water in the bucket, this draws out some water from the cells of our skin by osmosis resulting in shrinkage of our finger tips. But this theory is also considered wrong due to the fact that skin cells are impermeable.
Whatever the reason maybe, it is proven that shrinking of finger tips enhances our grip.
_____________________________
Q-) Why person taking concentrated solution of salt, vomits after sometime?
A-) Taking concentrated salt solution increases the osmotic pressure of the solution present in the stomach, this draws water from surrounding cells. Due to which our body is forced to vomit the solution.
_____________________________
Q-) Why after adding salt to the vegetables during cooking vegetable releases water?
A-) Same explanation, this increases the osmotic pressure of the surrounding solution of vegetable this forces vegetable to lose water through osmosis.
_____________________________
Hope it helps ^_^
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