EBK ANATOMY & PHYSIOLOGY
5th Edition
ISBN: 9780321888013
Author: Hoehn
Publisher: VST
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Chapter 21, Problem 18CYU
What is the relationship between
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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-)?
Refer to chemical equation shown here to explain why carbon dioxide dissolved in water acts as a buffer.
H2O+CO2<>H2CO3<>H++HCO3
What is the function of the buffer bicarbonate in the human body?
Chapter 21 Solutions
EBK ANATOMY & PHYSIOLOGY
Ch. 21 - Prob. 1CYUCh. 21 - Which structure seals the larynx when we swallow?Ch. 21 - Which structural features of the trachea allow it...Ch. 21 - What features of the alveoli and their respiratory...Ch. 21 - A 3-year-old boy is brought to the emergency...Ch. 21 - The lungs are perfused by two different...Ch. 21 - What is the driving force for pulmonary...Ch. 21 - What causes the intrapulmonary pressure to...Ch. 21 - What causes the partial vacuum (negative pressure)...Ch. 21 - Prob. 10CYU
Ch. 21 - Premature infants often lack adequate surfactant....Ch. 21 - Explain why slow, deep breaths ventilate the...Ch. 21 - You are given a sealed container of water and air....Ch. 21 - PO2 in the alveoli is about 56 mm Hg lower than in...Ch. 21 - Suppose a patient is receiving oxygen by mask. Are...Ch. 21 - Rapidly metabolizing tissues generate large...Ch. 21 - Prob. 17CYUCh. 21 - What is the relationship between CO2 and pH in the...Ch. 21 - Which brain stem respiratory area is thought to...Ch. 21 - Prob. 20CYUCh. 21 - An injured soccer player arrives by ambulance in...Ch. 21 - Prob. 22CYUCh. 21 - What distinguishes the obstruction in asthma from...Ch. 21 - Prob. 24CYUCh. 21 - Cutting the phrenic nerves will result in (a) air...Ch. 21 - Which of the following laryngeal cartilages is/are...Ch. 21 - Prob. 3RQCh. 21 - The detergent-like substance that keeps the...Ch. 21 - Which of the following determines the direction of...Ch. 21 - When the inspiratory muscles contract, (a) the...Ch. 21 - The nutrient blood supply of the lungs is provided...Ch. 21 - Oxygen and carbon dioxide are exchanged in the...Ch. 21 - Which of the following would not normally be...Ch. 21 - Most oxygen carried in the blood is (a) in...Ch. 21 - Which of the following has the greatest...Ch. 21 - In mouth-to-mouth artificial respiration, the...Ch. 21 - Prob. 13RQCh. 21 - Prob. 14RQCh. 21 - Damage to which of the following would most likely...Ch. 21 - Prob. 16RQCh. 21 - Trace the route of air from the nares to an...Ch. 21 - (a) Why is it important that the trachea is...Ch. 21 - Briefly explain the anatomical reason why most men...Ch. 21 - The lungs are mostly passageways and elastic...Ch. 21 - Describe the functional relationships between...Ch. 21 - Discuss how airway resistance, lung compliance,...Ch. 21 - (a) Differentiate clearly between minute...Ch. 21 - Prob. 24RQCh. 21 - (a) Define hyperventilation. (b) If you...Ch. 21 - Prob. 1CCSCh. 21 - Prob. 2CCSCh. 21 - Barbara Joley was in the bus that was hit...Ch. 21 - Barbara Joley was in the bus that was hit...Ch. 21 - Prob. 5CCSCh. 21 - Prob. 6CCSCh. 21 - Prob. 7CCS
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- Carbon dioxide is dissolved in blood (pH 7.4) to form a mixture of carbonicacid and bicarbonate. Neglecting free CO2, what fraction will be present as carbonic acid? Would you expect a significant amount of carbonate (CO32-)?arrow_forwardWhat effect does increasing pH have on:? CaCO3(s) + 2H+1(aq) ⟷⟷ Ca+2(aq) + H2O(l) + CO2(g)arrow_forwardConsider the following pH titration curve of a diprotic acid. What is the approximate values for pka 1 and pka 2? the curve is attached below.arrow_forward
- Consider the equilibrium shown below; indicating the buffering system in the blood circulation. CO, + H,0 [H,CO3] HCO3¯+H* When a patient is choking, would this lead to an alkalosis or an acidosis situation? Explain.arrow_forwardNormal arterial pH is 7.35 to 7. 45. Both metabolic and respiratory alkalosis have pH more basic compare to the normal arterial pH. The difference is 0.5 units. What is pH value in alkalosis? Niemann-Pick type C disease is a progressive neurological disease; symptoms include unsteady walking with uncoordinated limb movements, slurred speech, a difficulty in swallowing, epilepsy and tremor. This condition is due to the abnormal functioning of a lysosome. State the normal functions performed by this organelle.arrow_forwardIndicate the ionic species of phosphoric acid that predominates at pH 4, 8, and 11.arrow_forward
- Use the law of mass action and the following equation: H2O + CO2 <-> H2CO3 <-> H+ + HCO3- to describe what happens to pH, HCO3-, and CO2 when there is an increase in H+ from a metabolic source.arrow_forwardWhat is the total anion concentration (in mEq/L) of a solution that contains 5.0 mEq/L Na+ , 12.0 mEq/L Ca2+,and 2.0 mEq/L Li + ?arrow_forwardWhy does a lower salinity of water increase the solubility of gas?arrow_forward
- If the pH of a voledronic acid solution is 5.8, and the voledronate concentration is 9 mM, what is the concentration of voledronic acid? (pKa=5.0) 1.4 0.5 185.2 20 379.5arrow_forwardWhat effect is observed on the pH of the blood in each of the following cases? a. [HCO 3−] decreases.c. [CO 2] increases. b. [HCO 3−] increases.d. [CO 2] decreases.arrow_forwardWhat is the pH of the following buffer mixtures? (a) 100 mL 1 M acetic acid plus 100 mL 0.5 M sodium acetate (b) 250 mL 0.3 M phosphoric acid plus 250 mL 0.8 M KH2PO4arrow_forward
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