Lecture 25

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Question 1 of 28

What is Dalton’s law? = P - the sum of all partial pressures.

Question 1 of 28

Question 2 of 28

How does Dalton’s law relate to atmospheric pressure? = Atmospheric pressure is the sum of all the pressures of the components of air.

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Question 3 of 28

What does equilibrium of gas in solution mean? = The solubility of atmospheric pressure.

Question 3 of 28

Question 4 of 28

What is partial pressure? = The pressure required to prevent gas leaving a liquid. (P/Area)

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Question 5 of 28

What is Henry’s Law? = C equle __? PA.

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Question 6 of 28

What is the percentage of O2 dissolved in blood? = 2%.

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Question 7 of 28

What is the percentage of O2 dissolved in blood by being attached to Hb? = 98%.

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Question 8 of 28

List the stages of cooperative binding? = Easy to hard 2-3-1-4.

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Question 9 of 28

What does sigmoidal mean? = ‘S’ shape.

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Question 10 of 28

Draw the sigmoidal HbO2 equilibrium relation? = Graph:

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Question 11 of 28

What is the maximum amount of O2 dissolved in 1L of blood? = 200 ml.

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Question 12 of 28

At what PAO2 does this occur? = 100mm Hg.

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Question 13 of 28

When does the saturation of O2 in Hb begin to steeply decline? = 40mm Hg.

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Question 14 of 28

How saturated is blood returning to the lungs at rest? = 70%.

Question 14 of 28

Question 15 of 28

How saturated is blood returning during exercise? = 25%.

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Question 16 of 28

How does pH affect the equilibrium relation? = Shifts to the right (less affinity) as pH decrease.

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Question 17 of 28

How does the PaCO2 affect equilibrium relation? = Shifts to the right (less affinity) as Pa CO2 increase.

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Question 18 of 28

How does the temperature affect equilibrium relation? = Shifts to the right (less affinity) as temp increase.

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Question 19 of 28

When do all these occur? = Exercise.

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Question 20 of 28

What is the beneficial effect of this? = O2 delivered to tissues, CO2 delivered to lungs.

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Question 21 of 28

How do anaemia and CO poisoning affect HbO2 equilibrium? = Lessen saturation values. (Graph)

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Question 22 of 28

What present at CO2 in blood is dissolved in simple solution? =

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Question 23 of 28

How much is HbCO2? =

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Question 24 of 28

How much is HCO3-? =

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Question 25 of 28

How is CO2 excreted from the blood? = Lungs/kidneys.

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Question 26 of 28

How is CO2 excreted from the body? = Exhalation/urination.

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Question 27 of 28

What is the max CO2 in blood? = 600ml.

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Question 28 of 28

How does O2 saturated affect HbCO2 saturation? = As HbO2 (increase) Hbco2 (decrease).

Question 28 of 28