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The pH of blood varies directly with (a) HCO3−, (b) PCO2, (c) H+, (d) none of the above.
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- A) how to explain that a venous blood looks purplish blue and an arterial blood appears bright red to us? B) what other important for life porphyrins (complex ions) do you know?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 compensationCalculate the hydrogen ion concentration, [H+], for each of the following materials: (a) Blood plasma, pH 7.4 (b) Orange juice, pH 3.5 (c) Human urine, pH 6.2 (d) Household ammonia, pH 11.5 (e) Gastric juice, pH 1.8
- What are the pH values for the following solutions? (a) 0.1 MHCl (b) 0.1 M NaOH (c) 0.05 M HCl (d) 0.05 M NaOHIn what range would the blood pH of a heavy smoker with advanced emphysema fall: (a) less than 7.35; (b) 7.35–7.45; (c) greater than 7.45? Explain your choice.Select the best answer or answers from the choices given: A deficiency in this element can be expected to reduce the hemoglobin content of blood: (a) Fe, (b) I, (c) F, (d) Ca, (e) K.
- Carbon dioxide is dissolved in blood (pH 7.4) to form a mixture of carbonic acid and bicarbonate. Neglecting free CO2, what fraction will be present as carbonic acid? Would you expect a significant amount of carbonate (CO32-)?The carbonic acid equilibrium is shown below. Exhalation of CO2 by the lungs causes this equilibrium to shift to the ______, which causes the pH of the blood to _______. H+ + HCO3- <=> H2CO3 <=> H2O + CO2 a) left; increase b) left; decrease c) right; decrease d) right; increaseWhat charged groups are present in leucine at a pH = 7? OA) 1× NH3 B) 1 x COO™ O + C) 1× NH3 and 1 x COO™ OD) 2 × NH3+ and 1 × COO- O E) 1× NH3¹ and 2 × COO- + OF) None
- Helen is a 62-year-old smoker. Her physician has diagnosed her as having emphysema that has caused her to hypoventilate. Surprisingly, when her blood pH is checked, it is 7.40. Why?Harry 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. 3,4a 86 years old women brought to emergency room with these readings :PH = 7.22 (normal :7.35-7.45) , PaCO2 = 9.6 mmHg ( normal: 35-45) ,HCO3- = 3.9 mmol/l ( normal : 22-26) .. she complains from : A) Metabolic acidosis. B)Respiratory acidosis. C)Metabolic alkalosis. D)Respiratory alkalosis.