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1. (1 point)- Please order (lowest to the highest) the nitrogenous wastes Urea,

ID: 216804 • Letter: 1

Question

1. (1 point)- Please order (lowest to the highest) the nitrogenous wastes Urea, Ammonia and Uric acid based on their requirement of water for secretion. 2. (2 points)- In mammals, how is the concentration of urine achieved: by adding solutes to the urine, or removing water from the urine? Yemovinh woter from te rine Wofer rom 3. (1 point)- Please define Reabsorption" in the context of the excretory process. 4. (2 points)- If a human patient has a truncated (abnormally short) collecting duct, do you expect the urine be more concentrated or diluted? Why? 5. (2 point)- Where is the hormone ADHI released? Where and what is the response it induces? 6. (2 points)- The side effect of drug X is to activate osmoreceptors in the hypothalamus. Thus, do patients taking drug X have a more concentrated or diluted urine soon after taking the medication? Explain why

Explanation / Answer

Lowest and highest concentration of nitrogenous wastes based on water requirement are:
Ammonia require more amount of water
Urea require less water
Uric acid require least water


In mammals, concentration of urine is achieved by removing excess of water.


In reabsorption, water and solutes are moved back to plasma.
In our body most of the reabsorption of water and solutes occur in nephrons.