alleryStart learning →How many types of aquaporin are known in humans, and how many of those appear in the kidney?
AAt least 10 known, with six in the kidney
BAt least 10 known, with two in the kidney
CAt least 30 known, with six in the kidney
DAt least 6 known, with ten in the kidney
Answer & Solution
Correct answer: A. At least 10 known, with six in the kidney
1. Aquaporins are channels so narrow that only water passes through them.
2. At least 10 types are known in humans.
3. Six of those 10 are found in the kidney, which is where water handling is most finely tuned.
4. Most cells of the body carry aquaporins of some type, so they are not a renal speciality alone.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 25 "The Urinary System", section 25.4 Microscopic Anatomy of the Kidney_
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