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Raisins absor...

Question

Raisins absorb water by___________.

A

osmosis

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B

simple diffusion

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C

imbibition

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D

active absorption

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Solution

The correct option is C
imbibition

Imbibition is the process of adsorption of water by substances without forming a solution. Swelling of raisins when immersed in water is an example of imbibition. Imbibition is the temporary increase in the volume of the cell. Imbibition is a passive transport of materials that does not require energy during the process.

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Raisins absorb water by___________.

Raisins absorb water by___________.

Q. A student soaked 5 g of raisins in beaker (A) containing 25 mL of ice-chilled water and another 5 g of raisins in beaker (B) containing 25 mL of tap water at room temperature. After one hour the student observed that:
(1) water absorbed by raisins in beaker (A) was more than that absorbed by raisins of beaker (B).
(2) water absorbed by raisins in beaker (B) was more than that absorbed by raisins of beaker (A).
(3) the amount of water absorbed by the raisins of both beakers (A) and (B) was equal.
(4) no water was absorbed by raisins in either of the beakers (A) and (B).

To determine the percentage of water absorbed by raisins, raisins are soaked in water for:

Q. DIRECTIONS: The following questions have four choices (a), (b), (c) and (d) out of which only one is correct. You have to choose the correct alternative.

Raisins are soaked in water for determining the percentage of water absorbed by raisins. The formula, used by a student, for calculating the percentage of water absorbed, is

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