If the body is short of water, what should happen to water reabsorption in nephrons?
Answer and explanation
Correct answer: Water reabsorption will increase
The governing concept is osmoregulation, or maintenance of the body’s water balance. When the body is dehydrated, the kidneys conserve water by increasing its reabsorption from the nephron filtrate into the blood. Consequently, less water is lost and urine becomes smaller in volume and more concentrated. Option A is correct. Complete stoppage would worsen dehydration, while digestion and oxygen production are not nephron functions.
Frequently asked questions
What is the correct answer to this question?
Water reabsorption will increase
Why is this the correct answer?
The governing concept is osmoregulation, or maintenance of the body’s water balance. When the body is dehydrated, the kidneys conserve water by increasing its reabsorption from the nephron filtrate into the blood. Consequently, less water is lost and urine becomes smaller in volume and more concentrated. Option A is correct. Complete stoppage would worsen dehydration, while digestion and oxygen production are not nephron functions.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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