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Which compound constitutes the majority of NPN substances in the blood?
Ammonia, Creatine, Urea, or Uric acid?
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- Ammonia, NH3, and ammonium ion, NH4+, are both soluble in water and could be easily excreted in the urine. Why does the body convert them to urea rather than excreting them directly?During the treatment for COVID-19, one complication includes an increase of CO2 in the lungs. This buildup of CO2 can result in a serious condition called respiratory acidosis if the level of H+ significantly changes. If the pH drops by 1 unit, what has happened to the H+ concentration?Calcium carbonate (CaCO₃(s)) is an important building material (limestone) and a quick cure for acid indigestion (TUMS). Ksp = 8.7x10⁻⁹ for CaCO₃(s). What, if any, is the effect of lowering the pH (as occurs in acid rain and acid indigestion) on the solubility of CaCO₃(s). (hint: use Le Chatelier's principle) A) there is no effect from lowering pH on CaCO₃(s) solubility B) lowering pH increases the CaCO₃(s) solubility C) additional information is required to determine the outcome D) lowering the pH lowers the solubility
- An individual's ratio of carbonic acid and bicarbonate ions is 17/0.6 Which of the following is a true statement? For a total of 3 answers - choose one of each of the following pairs: i) respiratory or metabolic ii) acidosis or alkalosis iii) uncompensated or partial compensationHarry ate a late meal at a cheap diner on the way home from work.A couple of hours later, he vomited three times, and then he consumed several packages of an antacid (mostly NaHCO3) over thenext several hours. By the evening of the next day, he was feelingbetter. During this ordeal, his blood pH did not deviate significantly.Select the mechanism(s) that helped maintain Harry’s pH within anormal range.(1) increased respiratory rate(2) increased H+ secretion by the renal tubule(3) decreased respiratory rate(4) decreased H+ secretion by the renal tubulea. 1 b. 2 c. 1,2 d. 3 e. 3,4What is the major source of ammonia in the body? Explain.
- Metabolic alkalosis refers to a process whereupon decreased hydrogen ion, or increased bicarbonate, concentrations occur in the body, and the blood pH becomes too basic. Answer the following questions: How does the body regain its acid-base equilibria/balance? What happens when that balance does not happen? Will a buffer system still work under these conditions?Explain the difference in the melting points of the linoleic acid and linolenic acid:what is the relationship of the concept "fluid and electrolytes" with the concepts "acid-base balance"?