Pick up the correct one:
Correct answer: B. Restricted water supply causes the body to conserve water.
- A. Conservation of water results in a large volume of diluted urine.
- B. Restricted water supply causes the body to conserve water.
- C. Release of ADH is restricted in the presence of hyper-osmotic body fluids.
- D. Reduction in reabsorption results in the production of a concentrated small volume of urine.
Explanation
When the body is faced with a restricted water supply, it triggers mechanisms to conserve water, primarily through the action of antidiuretic hormone (ADH). ADH promotes the reabsorption of water in the kidneys, leading to a smaller volume of concentrated urine. Option B correctly identifies this relationship. Options A, C, and D provide incorrect interpretations of the physiological processes at play. Specifically, Option A misrepresents the outcome of water conservation, Option C incorrectly states the response of ADH to hyper-osmotic conditions, and Option D misunderstands the effect of reduced reabsorption on urine concentration.
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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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