Person Water drunk Urine volume Urine colour P small small dark Q large large pale The table shows how much water two people drank and the urine each produc...
Question 1 Report
| Person | Water drunk | Urine volume | Urine colour |
|---|---|---|---|
| P | small | small | dark |
| Q | large | large | pale |
The table shows how much water two people drank and the urine each produced. In which person were the kidneys acted on by the most ADH?
Answer Details
ADH makes the kidney reabsorb more water, giving a small volume of dark, concentrated urine. Person P drank little and produced a small, dark urine, which is the sign that the kidneys were acted on by the most ADH to conserve water. Person Q drank a lot and made pale, dilute urine, showing less ADH, so the kidneys were losing the excess water instead of saving it.
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