lecture 4

Question 1

how much oxygen can be carried in hb

Answer 1

1 molecule of Hb can carry 4 molecules of 02

Question 2

Hb carrying capacity is depended on

Answer 2

1- partial pressure
2- the blood pH
3- the blood temp
4- the concentration

Question 3

how to calculate oxygen saturation

Answer 3

actual 02 carried/total 02 that can be carried

Question 4

P02 in the body

Answer 4

when p02 is high = hb and 02 bind easily
when p02 is low = Hb and 02 do not bind easily
- p02 is highest in the arterial blood = 100Hg
- p02 is lowest in the muscle

Question 5

bohr effect

Answer 5

more acidic pH occurs during exercise Hb releases more readily
- increase acidic environment hb decreases therefore better effiency of 02 relesaing

Question 6

effect of tempreture on 02 release

Answer 6

increase tempreture = increased 02 release

- warmer conditions will induce less binding of hb 02 and therefore more 02 release

Question 7

2,3 DPG

Answer 7

RBC does not have mitocondira instead rely on the breakdown of glucose for the production of ATP
- increase concentration of DPG = increase oxygen release

Question 8

effects of exercise on 02 transport

Answer 8

1- exercise increase body temp

2- exercise increase acidity