Concept explainers
Introduction:
The buffer resists the changes of the pH in a solution by converting a strong acid to a weak acid or a strong base to a weak base. Physiological as well as chemical buffer systems regulate the stabilization and maintenance of the body pH.
Chemical buffer systems:
A substance which binds to hydrogen ions and removes them from a solution when the concentration of hydrogen ions begins to increase, or a substance which releases hydrogen ions to the solution when the concentration of hydrogen ions begins to decrease is a chemical buffer. Within a second, the normal pH of the solution is restored by the chemical buffers. The chemical buffer systems are classified into three types, namely the bicarbonate, the phosphate, and the protein systems.
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Chapter 24 Solutions
A&P UNITY AND FUNCTION ACCESS
- Identify the most powerful buffer system in the body, provide the equation to show how this buffer is reversible.arrow_forwardState the chemical equation for the bicarbonate buffer system.arrow_forwardWhat is the importance of the buffer system in human body fluids? Mention two important buffer systems of the human body.arrow_forward
- Why are the bicarbonate and phosphate buffers the main buffers in the blood and cells, respectively, and not vice versa?arrow_forwardWhich of the following is incorrect regarding the bicarbonate buffer system: A B C D an increase in proton will lower blood pH carbonic anhydrase catalyzes the formation of carbonic acid from proton and bicarbonate ion the purpose of the buffer system is to resist changes in blood pH alkalosis is defined as a pH of > 7.45arrow_forwardThe least efficient buffer mixture?arrow_forward
- List the 3 chemical buffer systems and describe how the most common one works. Please try and keep the explanation simple so that I can better understand, thank you :)arrow_forwardAn unconscious patient is delivered to emergency room. His blood gases are obtained: pH = 7.09, HCO3- = 15 mEq/L, pCO2 = 50mmHg. What type of acid-base disorder this patient has? Why is he unconscious?arrow_forwardBuffers are mixtures of a weak acid and a weak base that combine with a strong acid or base to limit changes in pH. True O Falsearrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
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