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That is a good question! As you undoubtedly know, urine is simply a filtrate of blood. As the blood goes through the nephrons of the kidney ( about 1,000,000/kidney )the blood is filtered, then some of the filtrate is reabsorbed and then materials are secreted into the urine by active transport. So basically, anything that the blood contains that is small enough to go through the pores of the capsule and capillaries will wind up in the filtrate. Some things, like glucose, are reabsorbed actively back into the blood. Water is passively reabsorbed along with some electrolytes etc. Some materials that are not found in the blood are manufactured (secreted) by the kidney tubules so that they can be excreted. These include urea and uric acid. Since the content of your blood changes due to your diet or disease, so does your urine. For example, the color varies due water content and because of beets or rhubarb in the diet. The pH gets more basic in a vegetarian's diet and some foods such as asparagus and garlic change urine's odor. In addition to these normal variations, diseases such as Diabetes will greatly effect urine's composition and odor. Also, the amount of water varies due to sweating or vomiting. The body homeostatically decreases urine output in an attempt to conserve water in the body. Hence, the concentrations of solutes increase. We normally think of the kidneys as the eliminator of liquid wastes for the body, but we must realize that by doing that, they regulate our body's chemistry in a very precise manner. Without this activity, we die, or will need dialysis and/or a transplant. I hope this helps you. J. BridgerSource:http://www.madsci.org/posts/archives/2000-11/975372577.Gb.r.html
What else can I help you with?
What would cause urine to turn pink-red when bleach is added?
Urine contains compounds that react with bleach, leading to a chemical reaction that produces a pink or red color. This reaction usually occurs when there are high levels of certain substances in the urine, such as blood. It is important to note that this color change can be a sign of a potential health issue, and it is recommended to consult a healthcare professional if you notice this change.
What may happen to the sodium content in the urine of a person who increased his or her intake of sodium chloride?
the sensory division of pns will detect the change of high amount of sodium.and ADH antidiuretic hormone will be released for the reabsorption of sodium.and kidneys will filter sodium and make the urine appropriate to eliminate.
What is the chemical you put in a pool to detect urine called?
I have researched this for years, there is no such thing, it is just something people tell kids so they don't pee in the pool!! ANSWER Apparently this is an urban legend (see link to Snopes below). There is a chemical called phenolphthalein that will change colors based on the pH level but it would actually have to go from red to clear so it would not create the "red cloud" around someone. I do not think anyone would use this chemical because it is also a laxative which would create a whole other problem.
What chemical is made from ammonia that excreted in the urine?
Urea is the chemical made from ammonia that is excreted in the urine. Our body converts ammonia, a waste product of protein metabolism, into urea in the liver. Urea is then filtered by the kidneys and excreted in the urine.
What happen when a urine specimen is allowed to sit for an hour?
When a urine specimen is allowed to sit for an hour, bacterial growth may increase due to the warm and moist environment, potentially leading to inaccurate test results. Additionally, the pH and chemical composition of the urine may change, which can affect the accuracy of certain tests such as urine culture or urinalysis. It is always best to process urine specimens promptly to ensure accurate results.
Is producing urine in the kidney a Chemical change?
No. The urine is not produced in the kidney. The kidney is a filter.
Does urine turn color in public pools?
In some pools, the cleaners add a chemical into the water, to turn urine blue. Most pools don't have these on these days. But in a pool without the chemical, no urine doesn't change color.
What is urinanlysis?
urinalysis is the examination of urine and its content,urinalysis can be very comprehensive,testing for dozens of different physical and chemical characterization
Will warming up urine dilute it?
No, warming up urine will not dilute it. Dilution occurs when more liquid is added to the urine, decreasing the concentration of substances present. Heating urine does not change its chemical composition.
Can you used your urine to fertilize your plant?
No. The salt content in urine will kill the plant.
What is the chemical formla for urine?
Urine is a complex mixture, not a compound.
What are chemical properties of urine?
chemical properties of urine is tasty, give it a try, it is going to be the next coca cola
Does coffee change your urine color?
caffeine acts as a diaretic for those who are not used to it, and by drinking it you will go pee more frequently throughout the day. for those who are used to it it will have no effect on the body
What is the Nitrogen content of horse urine?
The exact content of nitrogen in horse urine will need to be tested. Human urine contains approximately 15-19% nitrogen.
How will milk affect your composition of urine?
Has some sort of chemical in it that affects urine
Why urine used to fertilize plants?
because urine contains urea which enriches the soil with nitrogen content.
Does human urine hurt grass?
For the most part Urine is what our biological bodies do to expel the toxins created within our bodies. Chemical composition would dictate if I were to pee repeatedly in the same spot after a while there would be an area that will be visibly altered. And it wouldn't take all that very long. Urine has a high ammonia content.
