A cell whose internal salt concentration is 0.3 /liter is placed in a solution having salt concentration 0.5/liter. The solution is _
Correct answer: C. Hypertonic to the cell
- A. Isotonic to the cell
- B. Hypotonic to the cell
- C. Hypertonic to the cell
- D. None of these
Explanation
The correct answer is that the solution is hypertonic to the cell. A hypertonic solution has a higher concentration of solutes compared to the cell, leading to the movement of water out of the cell. In this scenario, the external solution has a salt concentration of 0.5/liter, which is higher than the cell's internal salt concentration of 0.3/liter, indicating that the solution is hypertonic. Options A and B are incorrect because isotonic and hypotonic solutions would both have different effects on the cell's water movement. Option D is incorrect because the correct answer is provided in the options.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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