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Polyuria can be a symptom of diabetes insipidus and diabetes mellitus because both diseases Question 3 options: 1) have decreased reabsorption of water in the distal tubule and collecting duct 2) have problems with insertion of membrane transporters 3) cause increased osmolarity of the filtrate moving through the nephron 4) result from decreased hormone signaling in the nephron

Question

Polyuria can be a symptom of diabetes insipidus and diabetes mellitus because both diseases

Question 3 options:

have decreased reabsorption of water in the distal tubule and collecting duct

have problems with insertion of membrane transporters

cause increased osmolarity of the filtrate moving through the nephron

result from decreased hormone signaling in the nephron

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Solution

The correct answer is option 1: "have decreased reabsorption of water in the distal tubule and collecting duct."

Here's why:

Both diabetes insipidus and diabetes mellitus can lead to polyuria, which is a condition characterized by the production of abnormally large volumes of dilute urine.

In the case of diabetes insipidus, the body cannot properly balance fluid levels. This is because the kidneys either don't respond correctly to the hormone that regulates water balance (vasopressin or ADH), or the pituitary gland doesn't produce enough of this hormone. This results in the kidneys not being able to reabsorb water back into the body, leading to the production of large amounts of dilute urine.

In the case of diabetes mellitus, high blood sugar levels cause sugar to spill into the urine, which pulls water from the body along with it. This leads to increased urine production.

So, both diseases result in decreased reabsorption of water in the distal tubule and collecting duct, leading to polyuria.

This problem has been solved

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