2

Question 1

pH of blood

Answer 1

7.4 + or - 0.05

Survival range: 6.8 - 7.8

Question 2

What could blood acidosis result from?

Answer 2

Starvation

Uncontrolled diabetes

Question 3

What could blood alkalosis result from?

Answer 3

Severe vomiting

Kidney disease

Question 4

Sources of H+ ions during exercise

Answer 4

CO2 production
Lactate production
ATP breakdown

Question 5

Factors contributing to exercise induced acid production

Answer 5

Exercise intensity
Exercise duration
Amount of muscle mass involved

Question 6

First line of defence against pH change during intense exercise

Answer 6

Cellular buffer systems - bicarbonate, phosphate, and protein buffers

Question 7

Second line of defence against pH change during intense exercise

Answer 7

Blood buffer systems - bicarbonate, phosphate, and protein buffers

Question 8

Respiratory compensation

Answer 8

Mechanism by which plasma pH can be regulated by varying respiratory rate

Question 9

Carbon dioxide transport reaction

Answer 9

CO2 + H2O ↔️ H+ + HCO3-
Enzyme - carbonic anhydrase
This reaction occurs in the RBC, but the bicarbonate is transported in the plasma