The net movement of water molecules remain in equilibrium when the cell is paced in:
Correct answer: C. Isotonic solution
- A. Hypotonic solution
- B. Hypertonic solution
- C. Isotonic solution
- D. None
Explanation
The correct answer is an isotonic solution. In this type of solution, the concentration of solutes is the same inside and outside the cell, leading to a net movement of zero for water molecules. This equilibrium state means water enters and exits the cell at the same rate. In contrast, a hypotonic solution leads to water entering the cell, while a hypertonic solution causes water to leave the cell. The option 'None' is incorrect because isotonic solutions do indeed exist and are a key concept in understanding cellular homeostasis.
Last updated
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.
Practise Homeostasis
698 free Homeostasis MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A biological defense of our body with greater speed and effectiveness is called:
A capillary tuft from which fluid leaves the circulatory system:
A cell is placed in a solution and it swells. This solution is _
A cell is placed in a solution and swells. This solution is:
A cell whose internal salt concentration is 0.3 /liter is placed in a solution having salt concentration 0.5/liter. The solution is _