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continuation Flashcards

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1
Q

to which enzyme will the myoglobin release the oxygen when oxygen supply becomes inadequate

A

Cytochrome oxidase

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2
Q

What is the oxygen saturation of fetal blood at 33 MM of oxygen, 37°C and pH of 6 to 8

A

58%

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3
Q

What is the oxygen saturation of maternal blood

A

33%

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4
Q

Fetal hemoglobin is composed of

A

2 alpha chains and 2 gamma chains

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5
Q

What is the normal Hgb

A

hgbA

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6
Q

Hemoglobin A is composed of

A

2 Alpha and 2 beta chain

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7
Q

An abnormal hemoglobin consist of

A

4 B-chains

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8
Q

It has 10 times oxygen affinity than normal hemoglobin

A

hgb H

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9
Q

HGBF normally disappears after how many months

A

4 to 6 months except in anemic conditions

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10
Q

chains tha contains isoleucine and single sulfhydryl group

A

gamma chain

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11
Q

t or f: Hemoglobin H exhibit bohr’s effect

A

false, bec it does not

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12
Q

t or f: myoglobin exhibits bohr’s effect

A

true

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13
Q

This is a shift that happens at constant pH

A

isohydric effect

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14
Q

How much is taken up by the blood in carbon dioxide exchange

A

5%

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15
Q

Another name for the first chloride shift

A

Hamburgers phenomenon

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16
Q

How much carbon dioxide is transported by blood from Tissues to the lungs

A

5 to 10 ML

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17
Q

What happened to the rate of the disassociation of Oxyhemoglobin when there is a decrease in temperature

A

decrease

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18
Q

the increase in PCO2 will decrease the affinity of hemoglobin for oxygen is known as

A

bohrs effect

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19
Q

What will happen to the rate of dissociation of Oxyhemoglobin if there is low oxygen pressure

A

It will increase

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20
Q

what is the amount of oxygen supplied by 100 ML of blood in tissues

A

6-4 ML

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21
Q

Which gas regulates the rate and depth of respiration

A

Carbon dioxide

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22
Q

What will happen to the Ventilatory rste if the pH is low as well as the PCO2

A

Decrease Ventilatory rate

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23
Q

What happens to the rate and depth of respiration if the pH is increased and CO2 concentration is low

A

Normal rate and depth

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24
Q

What will happen to the rate and depth of respiration when the CO2 concentration in the blood is increase

A

Increased pulmunary ventilation

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25
What is the PCO2 in alveolar air
36
26
What blood favors the release of carbon dioxide
Arterial blood
27
What blood reduced hemoglobin favors the hemoglobin-CO2 combination
Venous blood
28
This blood carries more CO2 in the form of carbamino compound than arterial blood
Venous blood
29
This enzyme makes the CO2 hydrated to carbonic acid and it is also used to reverse dehydration
Carbonic anhydrase
30
This enzyme catalyzed is the synthesis of bicarbonate from carbon dioxide and water and the degradation of carbonic acidinto hydrogen and bicarbonate
Carbonic anhydrase
31
Three forms of carbon dioxide that is carried in the blood
As dissolve carbonic acid, as carbamino bound carbon dioxide, as bicarbonate combined with cations, Na an K
32
Dissolve carbonic acid percentage
5%
33
Carbon me know bound carbon dioxide percent
20%
34
Bicarbonate combined with cat ions, sodium and potassium Percent
75%
35
CO2 content of arterial blood
50 volumes percent
36
CO2 content of venous blood
55 to 60 volumes percent
37
How much will the whole blood take up the amount that the plasma will take
70 to 80 times
38
What state if the hemoglobin form a reversibly stable complex
Ferrous state
39
Volume of inspired air in oxygen tension
159 to 160
40
Volume of alveolar here in oxygen tension
108 MM Hg
41
Partial pressure of accident in arterial blood
100 mm mercury
42
Partial pressures of tissues in oxygen tension
20-50 MM Hg
43
PC02 in tissues
50-70 mmHg
44
PCO2 in arterial blood
40 mmHg
45
PCO2 in venous blood
46 mmHg
46
PCO2 in Alveolar air
36 mmHg
47
Conditions that affect the diffusion of oxygen from alveolar to venous blood
Size of the epithelial wall, speed of the flow of blood, and affinity of oxygen to hemoglobin
48
How much is the thickness of the capillary wall and the respiratory epithelium
Not more than 0.004 MM
49
Composition of inspired air in oxygen
20.95%
50
Composition of inspired in of carbon dioxide
0.04%
51
Composition of nitrogen in inspired air
79%
52
Composition of expired air in oxygen
16.20%
53
Composition of expired in carbon dioxide
4.38%
54
The difference between inspired and expired in oxygen
4.92%
55
The difference of inspired and expired in carbon dioxide
4.34%
56
The law that governs the exchange of gases between the outside air, the blood and the different tissues of the body
Diffusion
57
The wall of the RBC is permeable to
Water, carbon dioxide, carbonic acid, chloride, hydrogen and slightly to sodium and potassium
58
The wall of the RBC is impermeable to
Plasma proteins
59
Name the location for the chemical receptors for respiration
Common carotid arteries and arch of the aorta
60
This is to maintain electrolytic equilibrium
First chloride shift or hamburgers phenomenon
61
This is to maintain electrolytic Balance
Second chloride shift
62
Oxyhemoglobin Is in the form of
Potassium oxyhemoglobinate

biochem lec (8 decks)

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