Question 1

In the bicarbonate buffer system, the weak acid carbonic acid is used to buffer a strong acid such as HCl.

Accepted Answer

A) True 
 B)False

Question 2

Match each term with it corresponding definition.
-Symbol indicating hydrogen ion concentration

Accepted Answer

A) Alkaline 
B) pH 
C) Buffer 
D) Acid 
E) Alkalosis
F)Chloride shift
G)Acidosis
H)Metabolic alkalosis
I)Metabolic acidosis
J)Respiratory acidosis
K)Respiratory alkalosis 
A) Alkaline 
B) pH 
C) Buffer 
D) Acid 
E) Alkalosis
F)Chloride shift
G)Acidosis
H)Metabolic alkalosis
I)Metabolic acidosis
J)Respiratory acidosis
K)Respiratory alkalosis

Question 3

Match each term with it corresponding definition.
-Arterial blood pH of less than 7.35

Accepted Answer

A) Alkaline 
B) pH 
C) Buffer 
D) Acid 
E) Alkalosis
F)Chloride shift
G)Acidosis
H)Metabolic alkalosis
I)Metabolic acidosis
J)Respiratory acidosis
K)Respiratory alkalosis 
A) Alkaline 
B) pH 
C) Buffer 
D) Acid 
E) Alkalosis
F)Chloride shift
G)Acidosis
H)Metabolic alkalosis
I)Metabolic acidosis
J)Respiratory acidosis
K)Respiratory alkalosis

Question 4

Distilled water (pure water) contains equal amounts of hydrogen and hydroxide ions.

Accepted Answer

A) True 
 B)False

Question 5

Explain why a change in pH is so detrimental to the functioning of the body.

Accepted Answer

A change in pH is detrimental to the fun

Question 6

In the phosphate buffer pair, Na₂HPO₄ acts as the basic phosphate.

Accepted Answer

A) True 
 B)False

Question 7

Match each term with it corresponding definition.
-Substance that prevents marked changes in the pH of a solution

Accepted Answer

A) Alkaline 
B) pH 
C) Buffer 
D) Acid 
E) Alkalosis
F)Chloride shift
G)Acidosis
H)Metabolic alkalosis
I)Metabolic acidosis
J)Respiratory acidosis
K)Respiratory alkalosis 
A) Alkaline 
B) pH 
C) Buffer 
D) Acid 
E) Alkalosis
F)Chloride shift
G)Acidosis
H)Metabolic alkalosis
I)Metabolic acidosis
J)Respiratory acidosis
K)Respiratory alkalosis

Question 8

Which of the following ratios of base bicarbonate to carbonic acid will maintain a normal pH?

Accepted Answer

A)  3:1 
B)  5:1 
C)  10:1 
D)  20:1 
A)  3:1 
B)  5:1 
C)  10:1 
D)  20:1

Question 9

The metabolism of ribonucleotides increases the hydrogen ion concentration of extracellular fluid.

Accepted Answer

A) True 
 B)False

Question 10

If NaOH were buffered by H-HCO₃, what would occur?

Accepted Answer

A)  There would be a slight drop in pH. 
B)  There would be a large drop in pH. 
C)  There would be a slight rise in pH. 
D)  There would be a large rise in pH. 
A)  There would be a slight drop in pH. 
B)  There would be a large drop in pH. 
C)  There would be a slight rise in pH. 
D)  There would be a large rise in pH.

Question 11

A solution with a pH of 7 would have no hydrogen ions in solution.

Accepted Answer

A) True 
 B)False

Question 12

The biological activity of phosphofructokinase (an important enzyme in anaerobic respiration) falls by 90% if the pH:

Accepted Answer

A)  falls by 1 unit. 
B)  falls by 0.5 units. 
C)  falls by 0.1 units. 
D)  rises by 1 unit. 
A)  falls by 1 unit. 
B)  falls by 0.5 units. 
C)  falls by 0.1 units. 
D)  rises by 1 unit.

Question 13

A pregnant patient who has been experiencing repeated vomiting episodes is admitted to the hospital by her obstetrician. After a series of tests determines that she is suffering from metabolic alkalosis, the physician orders intravenous administration of normal saline. How will this help the patient?

Accepted Answer

A)  It will reduce the vomiting episodes. 
B)  The chloride ions of the solution will replace the acidic ions and relieve the acidic excess responsible for her condition. 
C)  The chloride ions of the solution will replace bicarbonate ions and relieve the bicarbonate excess responsible for her condition. 
D)  The sodium ions of the solution will introduce more bicarbonate ions and relieve the bicarbonate shortage responsible for her condition. 
A)  It will reduce the vomiting episodes. 
B)  The chloride ions of the solution will replace the acidic ions and relieve the acidic excess responsible for her condition. 
C)  The chloride ions of the solution will replace bicarbonate ions and relieve the bicarbonate excess responsible for her condition. 
D)  The sodium ions of the solution will introduce more bicarbonate ions and relieve the bicarbonate shortage responsible for her condition.

Question 14

On the pH scale, as the value moves from 14 toward 7, the concentration of hydroxide ions decreases.

Accepted Answer

A) True 
 B)False

Question 15

Respiratory acidosis is also:

Accepted Answer

A)  carbonic acid excess. 
B)  carbonic acid deficit. 
C)  bicarbonate excess. 
D)  bicarbonate deficit. 
A)  carbonic acid excess. 
B)  carbonic acid deficit. 
C)  bicarbonate excess. 
D)  bicarbonate deficit.

Question 16

Match each term with it corresponding definition.
-Any substance that increases the hydrogen ion concentration of a solution

Accepted Answer

A) Alkaline 
B) pH 
C) Buffer 
D) Acid 
E) Alkalosis
F)Chloride shift
G)Acidosis
H)Metabolic alkalosis
I)Metabolic acidosis
J)Respiratory acidosis
K)Respiratory alkalosis 
A) Alkaline 
B) pH 
C) Buffer 
D) Acid 
E) Alkalosis
F)Chloride shift
G)Acidosis
H)Metabolic alkalosis
I)Metabolic acidosis
J)Respiratory acidosis
K)Respiratory alkalosis

Question 17

In the bicarbonate buffer pair, NaHCO₃ acts as the weak acid.

Accepted Answer

A) True 
 B)False

Question 18

Match each term with it corresponding definition.
-Bicarbonate deficit that could be caused by untreated diabetes mellitus or starvation

Accepted Answer

A) Alkaline 
B) pH 
C) Buffer 
D) Acid 
E) Alkalosis
F)Chloride shift
G)Acidosis
H)Metabolic alkalosis
I)Metabolic acidosis
J)Respiratory acidosis
K)Respiratory alkalosis 
A) Alkaline 
B) pH 
C) Buffer 
D) Acid 
E) Alkalosis
F)Chloride shift
G)Acidosis
H)Metabolic alkalosis
I)Metabolic acidosis
J)Respiratory acidosis
K)Respiratory alkalosis

Question 19

A solution with pH of 7 would contain _____ times the number of hydrogen ions as a solution with a pH of 8.

Accepted Answer

A)  2 
B)  3 
C)  5 
D)  10 
A)  2 
B)  3 
C)  5 
D)  10

Question 20

Strong evidence shows that bicarbonate loading counteracts the effects of lactic acid buildup in athletes.

Accepted Answer

A) True 
 B)False

Exam 44: Acid Base Balance

In the bicarbonate buffer system, the weak acid carbonic acid is used to buffer a strong acid such as HCl.

Match each term with it corresponding definition. -Symbol indicating hydrogen ion concentration

Match each term with it corresponding definition. -Arterial blood pH of less than 7.35

Distilled water (pure water) contains equal amounts of hydrogen and hydroxide ions.

Explain why a change in pH is so detrimental to the functioning of the body.

In the phosphate buffer pair, Na₂HPO₄ acts as the basic phosphate.

Match each term with it corresponding definition. -Substance that prevents marked changes in the pH of a solution

Which of the following ratios of base bicarbonate to carbonic acid will maintain a normal pH?

The metabolism of ribonucleotides increases the hydrogen ion concentration of extracellular fluid.

If NaOH were buffered by H-HCO₃, what would occur?

A solution with a pH of 7 would have no hydrogen ions in solution.

The biological activity of phosphofructokinase (an important enzyme in anaerobic respiration) falls by 90% if the pH:

On the pH scale, as the value moves from 14 toward 7, the concentration of hydroxide ions decreases.

Respiratory acidosis is also:

Match each term with it corresponding definition. -Any substance that increases the hydrogen ion concentration of a solution

In the bicarbonate buffer pair, NaHCO₃ acts as the weak acid.

Match each term with it corresponding definition. -Bicarbonate deficit that could be caused by untreated diabetes mellitus or starvation

A solution with pH of 7 would contain _____ times the number of hydrogen ions as a solution with a pH of 8.

Strong evidence shows that bicarbonate loading counteracts the effects of lactic acid buildup in athletes.

Organization of the Body

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