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Lecture 11 Excretory System

Lecture 11 Excretory System - 11.1 Urea is produced in the...

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11.1 Urea is produced in the A) kidney B) lung C) liver D) gall bladder E) pancreas 11.2 Ammonia is produced from the breakdown of A) sugars B) amino acids C) fatty acids D) thin acids E) glycerol 11.3 Which organ is involved in removing urea from the blood stream? A) Liver B) Pancreas C) Small intestine D) Large intestine E) Kidney 11.4. The basic functional unit of the kidney is the _________. 1) nephron 2) uron 3) cortex 4) medulla 5) renal artery 11.5 Since the kidney filters 200 liters of blood and eliminates about 2 liters of urine a day, A) The kidney must secrete NaCl B) The kidney must reabsorb urea C) The kidney must secrete water D) The kidney must reabsorb water E) The kidney must reabsorb glucose 11.6 The color of urine is due to A) Bile B) Hemoglobin C) Urobilins
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D) Cytochrome E) Asparagines 11.7. Experimenting on isolated organs allows for _________ but provides a less _________ environment than experimenting on live animals. 1) the exact measurement of calcium concentrations, salty 2) an easy determination of pH, basic 3) an easy determination of pH, acidic 4) cheaper experiments, crowded 5) more control, natural 11.8 Filtration of the blood at the glomerulus A) Is a passive process B) Passes small molecules C) Does not pass cells D) Does not pass proteins E) All of the above 11.9 Since cyanide caused a decrease in the urea in the urine, Ernest Starling concluded:
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