Final (Respiratory)

Question 1

O2 diffusion from lungs into ___?

Answer 1

lungs into blood

Question 2

PO2 in alveoli is higher/lower than PO2 venous blood?

Answer 2

higher (>)

Question 3

PCO2 in venous is giver/lower than PCO2 in alveoli?

Answer 3

higher(>)

Question 4

PCO2 in cells is higher/lower than PCO2 in arterial blood?

Answer 4

higher (>)

Question 5

What is the structure of hemoglobin?

Answer 5

2 beta chains
2 alpha chains
heme group

Question 6

How many O2 can hemoglobin carry?

Answer 6

can carry 0-4 oxygens

Question 7

Bohr shifts _______ curve which direction(s)

Answer 7

Shifts hemoglobin curve down and to the right

Question 8

What gets blood to the mitochondria?

Answer 8

muscle myoglobin

Question 9

How many O2 can muscle myoglobin carry?

Answer 9

ONE oxygen

Question 10

O2 transportation methods and percentages?

Answer 10

98% bound by hemoglobin

2% dissolved in plasma

Question 11

CO2 transportation methods and percentages?

Answer 11

60% bicarbonate ions
10% dissolved by plasma
30% bound by hemoglobin

Question 12

Slow vs Fast twitch - Which has more muscle myoglobin?

Answer 12

Slow twitch