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Characteristics of Living Beings

Osmoregulatio...

Question

Osmoregulation is concerned with

A

Concentrations of salt and water in the body

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B

The removal of nitrogen from the body

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C

pH of the blood

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D

Osmotic properties of cell membranes

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Solution

The correct option is B Concentrations of salt and water in the body
Osmoregulation is the maintenance of constant osmotic condition in the body, which involves regulation of the water content and solute concentration of body fluids. The solutes in body fluids are mainly mineral salts and sugars. Thus, the correct answer is option A.

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Similar questions

Plasma membrane helps in

A. Transportation of only water in and out of cell

B. Protein synthesis

C. Osmoregulation

D. Nucleic acid and synthesis.

Q. Assertion: If red blood cells were removed from the body and placed in pure water, the pressure inside the cells increases.
Reason: The concentration of salt content in the cells increases.

Q. In brief, state what happen when
(i) Dry apricot are left for some time in pure water and later transferred to sugar solution.
(ii) A red blood cell is kept in concentrated salt solution.
(iii) The plasma membrane of a cell breaks down.
(iv) Golgi apparatus is removed from the cell.

Q. The total concentration of dissolved particles inside red blood cells is approximately 0.30 M and the membrane surrounding the cells is semipermeable. What would the osmotic pressure (in atmosphere) inside the cells become if cells were removed from the blood plasma and placed in pure water at 298 K ?

Q. The total concentration of dissolved particles inside red blood cells is approximately

0.40 M

, and the membrane surrounding the cells is semipermeable. What would be the osmotic pressure (in the atmosphere) inside the cells become if the cells were removed from the blood plasma and placed in pure water at

298 K

?

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