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Chapter 26: InterActive Physiology: Acid/Base Homeostasis Test Instructions: Timed Assessment: This Test has a 1 hour timer.The elapsed time appears...
Chapter 26: InterActive Physiology: Acid/Base Homeostasis Test Instructions: Timed Assessment: This Test has a 1 hour timer.The elapsed time appears at the bottom of the window.A 1 minute warning will be displayed. Multiple Attempts: Not allowed. This Test can only be taken once. Force Completion: This Test must be completed now. It cannot be resumed later. How does the body compensate for respiratory acidosis? The kidneys retain bicarbonate ions. The kidneys excrete hydrogen ions. All answers are correct. The kidneys generate bicarbonate ions. Determine the correct sequence of primary compensatory steps used to correct metabolic acidosis. 1. The carbonic acid/bicarbonate buffer system is activated.2. Hyperventilation occurs3. Increased carbon dioxide levels result in activation of respiratory centers in the brain and large arteries4. Plasma levels of bicarbonate ions decrease while carbon dioxide levels increase.5. Excess hydrogen ion combines with plasma bicarbonate.6. Excess carbonic acid, in the form of carbon dioxide and water, are exhaled. 5, 1, 3, 4, 2, 6 1, 3, 5, 2, 4, 6 2, 1, 5, 4, 3, 6 1, 5, 4, 3, 2, 6 Match each statement to its correct answer. A. Excess potassium ions in the extracellular fluids contribute to this condition. B. Hypokalemia will result in this condition. C. Symptoms of this condition include headache, blurred vision, dizziness, and lethargy. D. Symptoms included increased sweating as well as numbness and tingling in the fingers and around the mouth. Increased acidity of body fluids would occur ____________________. as the result of hypoventilation. after the consumption of orange juice. during exercise. All answers are correct. Which statement about acidosis is CORRECT? There are two types of acidosis: metabolic and respiratory. All statements are correct. When acidosis occurs, compensatory mechanisms are employed in order to return blood pH to its homeostatic range. Acidosis is a condition characterized by a blood pH less than 7.35. The systemic effects of ketoacidosis ____________________. All answers are correct. result in minor metabolic acidosis. rarely result in changes in central nervous system functions. are life threatening and require medical treatment. Which statement is CORRECT? A pH of 9 is more acidic than a pH of 4. The pH of a solution increases when hydrogen ions increase. All answers are correct. A solution with a pH of 3 has more hydrogen ions than a solution with a pH of 4. Symptoms of ketoacidosis, due to type I diabetes, symptoms include ____________________. Increased urination. Increased thirst. Increased food consumption without weight gain. All answers are correct. Which statement is CORRECT? The kidney helps maintain pH of body fluids by releasing acids and bases into the urine. Urine always has the same pH. Urine pH range is kept fairly stable between pH 6- pH 8. All answers are correct. Match each of the following to its correct answer. A. Lactic acid B. Hydrochloric acid C. Bicarbonate ion D. Not found in the body Match each statement to its correct answer. A. If the rate of respiration increases the plasma, pH ___________. B. The concentration of plasma hydrogen ions _____________ when they are secreted. Respiratory alkalosis may ____________________. occur when anxiety leads to hyperventilation. occur when oxygen levels are low. be due to brain stem injury. All answers are correct. When the body is in acid/base homeostasis ____________________. arterial blood pH is 7.35 - 7.45. intracellular pH equals interstitial pH. urine pH is 7.0. All answers are correct. The body's principle source of carbon dioxide is ____________________. cellular respiration. inspired air. Anaerobic cell metabolism. All answers are correct. Match each statement to its correct answer. A. Are important in compensating for respiratory acidosis and alkalosis. B. The volatile acid, carbonic acid, is eliminated from the body as carbon dioxide. C. Acts within seconds to correct abnormal body fluids pH. Which statement is CORRECT? A person with the stomach flu is at risk for developing metabolic acidosis. Vomiting results in the loss of stomach contents that containing hydrogen, chloride, and fluid. All statements are correct. When carbon dioxide levels decrease respiration rate and depth increase. Which statement is CORRECT? In a buffer system, a dynamic equilibrium results in no net change in the concentration of weak acid or weak base. Acid/base homeostasis imbalance will occur when additional acid or base is added to body fluids. All statements are correct. Many chemical reactions in the body are reversible. Which of the following would be observed in simple, uncompensated respiratory alkalosis? Decreased plasma CO2 levels. Fluctuation in plasma bicarbonate levels. Increased plasma CO2 levels. All answers are correct. Death will occur ____________________. Only when blood pH is 6.9 No answers are correct. only when blood pH is 7.8 when blood pH reaches either 6.9 or 7.8 pH. Which organ produces insulin? Kidney Adrenal gland Pancreas Liver
