16. CP Gas Transport

Question 1

What is the solubility of O2 in plasma?

Answer 1

0.3 ml O2 / dl blood / 100 mmHg

Question 2

What is the average O2 content of arterial blood?

What is the oxygen content of blood at 100& saturation?

Answer 2

Average = 20 mlO₂ / dl blood (200ml O2 / L)

At 100% = 20.1 mlO₂ / dl blood

Question 3

What results in a right shift (lower affinity) of oxygen binding?

Answer 3

High CO2

High Temperature

2,3 BPG

(Eg. Being in the tissues)

Question 4

What is the O2 saturation in venous blood?

What is the O2 content in venous blood?

Answer 4

Saturation in venous blood = 75%

O2 content in venous blood = 15.2 ml O2

Question 5

What is the arterial - venous O2 difference?

Include definition and value.

Answer 5

Definition: The difference between the content of O2 in the arterial blood vs venous blood. (How much O2 was used.)

Value: 4.6 mlO2 / dl blood difference

Question 6

What is the CO2 production vs O2 consumption for:

Carbohydrates

Fatty Acids

Answer 6

Carbohydrates 1/1

Fatty Acids: 7 CO₂ : 10 O₂

Question 7

What is the average CO2 produced / O2 consumed for all fuels combined? (Experimental average)

Answer 7

8 CO₂ : 10 O₂

(.8)

Question 8

What is the equation for respiratory quotient (RQ)?

Answer 8

CO₂ produced / O₂ consumed

Question 9

What three forms can CO₂ take when transported in the blood?

Answer 9

Dissolved

Carbamino compounds (bound to amines)

As bicarbonate

Question 10

What is the solubility of CO₂ in blood plasma?

Answer 10

6ml CO₂ / dl blood / 100 mmHg

(20x higher than O₂)

Question 11

What is the CO₂ content in blood?

Answer 11

2.7 ml CO₂​ / dl

Question 12

What is the Haldane Shift?

Answer 12

The phenominon by which O2 changes the conformation of Hb to reduce the affinity of Hb for CO₂

Question 13

How much CO₂ is carried as cabamindo compounds?

Answer 13

3ml CO₂ / dl of blood