A) includes substances such as creatinine.\nB) is a way for the body to get rid of unwanted waste.
205249
Tubular reabsorption is a way to save things the body needs. The kidneys initially dump things from the blood into the glomerular filtrate (precursor to urine), then reabsorb some of it. Mostly water and salt, but also other ions and molecules such as folate. So, A's wrong.\n\nCreatinine is NOT reabsorbed in the tubules, although in very young (especially premature) neonates some of it does leak back across. So, B's wrong.\n\nAh, thanks for the extra info. The answer is C. Tubular absorption is both active and passive, but mostly active, and also D is internally wrong in that passive means NOT using ATP energy.
584933
What happened to the rest of the question? It's either A or B, because C deals with the pancreas, and D deals with over production of acid by the stomach. A and B deals with the gallbladder and it's production of bile salts to help emulsify fat that passes into the small intestine.
178145
"Certain laboratory tests can indicate whether your kidneys are eliminating waste products properly. These tests include serum creatinine and blood urea nitrogen (BUN); too much of either can indicate kidney damage."\n\nhttp://www.medicinenet.com/kidney_disease_hypertension-related/article.htm\n\n"Blood Urea Nitrogen (BUN) is a waste product produced in the liver and excreted by the kidneys. High values may mean that the kidneys are not working as well as they should. BUN is also affected by high protein diets and/or strenuous exercise which raise levels, and by pregnancy which lowers it. Creatinine is a waste product largely from muscle breakdown. High values, especially with high BUN levels, may indicate problems with the kidneys."\n\nhttp://www.amarillomed.com/howto.htm
456661
Solute \n\nSolution \n\nSuspension or Mixture\n\nFiltration\n\nSolvent
287988
The kidneys serve two major functions: they keep the salt content of the blood constant, and they filter waste out of the bloodstream. So, the main components of urine are (salt) water and waste products. The major waste product from cells in the body is ammonia, and the major waste product from blood is a broken form of heme called bilirubin. In the liver, each of these is converted into a less hazardous form: ammonia is converted to urea, and bilirubin is degraded to urobilins. Salt, water, and urea are all colorless, but urobilins (which come from degraded pigments) are yellow. So, if you drink a lot, your urine will be more dilute and clearer, and if you get dehydrated, your urine will contain less water and be darker yellow.
512034
Your body will only absorb the amount it needs, anything extra\nwill be flushed out of your body, so you would be just waisting\nmoney taking 2. Why over due it?
350912
A) Sodium and Chlorine yields Sodium Chloride.\n\nB and C) --> http://en.wikipedia.org/wiki/Conservation_of_mass
53571
Well, on a space ship the water in urine actually is recycled, but the waste products are removed first.  No one wants to drink urea (the yellow part), but the water's just water.  It might seem weird to think about, but the water portion of urine is recycled on a global scale too.  When you flush the toilet, it goes to a sewage treatment plant, and then the treated sewage is dumped some where.  Eventually, the water evaporates, and then comes back in the form of rain.  Chances are that every molecule of the water you drink has been through the body of some person or animal somewhere at least once.\n\nAs for recycling feces, it's not practical.  The waste that's excreted is excreted for a reason.  There's little or no valuable nutrients left, and it's teaming with harmful bacteria.  However, like water, the atoms in feces are recycled.  Wherever it ends up, bacteria and fungi will decompose the compounds in feces, and they will end up in the soil.  Some of these atoms in the soil are then absorbed by plants.  So there are probably former feces atoms in the cocoa beans that were used to make your brownies.  Not quite as direct as you were imagining, but on some level it does happen.
159961
Normal metabolism produces Ammonia within the body, which is toxic.  This Ammonia must be neutralized.  One of the ways the human body does this is the production of urea or uric acid in the liver.  Excess amino acids are also turned into Urea within the body.\n\nIf an excess of Uric acid occurs in the body ( Eating the wrong foods, kidney malfunction ), a condition called GOUT occurs...VERY painful joints and cartilage...
30518
doesnt urine get rid of toxins in the body?\nwouldnt you be poisioning yourself by drinking it
523539
chug cold water it burns more fat or something! it also helps clean your urinary tract out, and also keeping hydrated also helps you sweat impurities out, leaving you lean and skin radiant.
41454
There are several different ones you can do- liver/gall bladder, kidney, blood, lymph, and colon are the ones that come to mind right away.
411776
Creatine will dehydrate you so if you take it, make sure you drink enough water. Protein is always good. Without protein you can't build muscle.
532236
Albumin: \nCertain drugs increase albumin in your blood, including anabolic steroids, androgens, growth hormones, and insulin. \nIf you are receiving large amounts of intravenous fluids, the results of this test may be inaccurate\nCreatinine:\nDrugs such as aminoglycosides (gentamicin) can cause kidney damage and so creatinine is monitored. Other drugs, such as cephalosprins (cefoxitin), may increase creatinine concentration without reflecting kidney damage. \n\nSo empty stomach doesnt matter.
284638
The Kidney's primary function is to remove waste material from the blood stream.  Oxygen is used by every cell in the body to help metabolize nutrients.
165540
No. The kidneys filter blood to eliminate nitrogen wastes from the breakdown of proteins and nucleic acids. Most of these nitrogen wastes are excreted as urea.
294506
you either urinate it out or you crap it out.  The water content can also leave your body by your poars in your skin and it evaporates into the air.