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Explain how the presence of carbon dioxide can reduce affinity of hemoglobin for oxygen?
Wiki User
∙ 14y ago
Its to do with the Bohr shift its kinda like if there's carbon dioxide in the haemoglobin it makes it harder for the o2 to be taken up by the haem ..............
I wouldn't count on this answer but try researching the Bohr shift it should help :)
Biology A-level FTW I'm answering that question from my text book right now :)
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∙ 14y ago
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Does a low pH decrease hemoglobins affinity for oxygen?
Yes. This an example of the Bohr effect. If pH is lower than normal (normal is 7.4), then hemoglobin does not bind oxygen as well. The higher the pH, the lower the H ion concentration, the lower the carbon dioxide level, and the GREATER affinity hemoglobin has for oxygen. The binding of oxygen to hemoglobin in the lungs is not affected by changing the pH.
What is the most important protein in the physiologically transport of carbon dioxide by blood?
The Bicarbonate Buffer System
Carbon dioxide transported in the blood?
describe how carbon dioxide is transported in the blood
Which part o the hemoglobin molecule does carbon dioxide attach?
Hemoglobin refers to a red protein responsible for transporting oxygen in the blood of vertebrates. The part of the hemoglobin molecule that carbon attaches to is the heme molecule.
What is the iron rich material in the blood is called?
Its called hemoglobin. it also gives the color to red blood cells, when carrying oxygen, and the bluish color when they carry carbon dioxide.
Does a low pH decrease hemoglobins affinity for oxygen?
Yes. This an example of the Bohr effect. If pH is lower than normal (normal is 7.4), then hemoglobin does not bind oxygen as well. The higher the pH, the lower the H ion concentration, the lower the carbon dioxide level, and the GREATER affinity hemoglobin has for oxygen. The binding of oxygen to hemoglobin in the lungs is not affected by changing the pH.
Does hemoglobin's affinity for oxygen increase or decrease with exercise?
It decreases due to the increase in carbon dioxide in the blood. This causes more oxygen to be uploaded to the tissues
What sytem removes carbon dioxide from the blood?
hemoglobin removes oxygen from the blood because of certain binding affinity on the 4 quadrants of this protein. The hemoglobin makes it way through your circulatory system where it diffuses into the lungs and out of your mouth during exhalation.
Fetal hemoglobin or hemoglobin F does not bind oxygen as well as adult hemoglobin hemoglobin A?
FalseAdult hemoglobin has less affinity for oxygen than fetal hemogloblin. That is why, as an adult female's blood passes BY the placenta, the oxygen diffusses into the fetal blood. Likewise, adult blood, having explelled the carbon dioxide during exhalation, has less concentration of carbon-dioxide than the fetal blood, so it diffuses out of fetal blood into the adult blood. That way, the fetus doesn't need respiration as an oxygen source, nor as a way to rid of waste and carbon dioxide.
Less gas exchange occurs in damaged air sacs explain why?
The alveolar sacs must adhere closely in order for gas exchange to occur. In cases of emphysema, the air sacs are dilated causing less carbon dioxide to escape. Since hemoglobin has 200x the affinity for carbon dioxide over oxygen, carbon dioxide builds up leading to respiratory acidosis. This condition is ideal for growing cancer.
What is the special type of hemoglobin present in fetal RBC?
Fetuses possess a different type of haemoglobin to their mothers - HbF rather than HbA. The purpose of this is to allow the developing infant to 'steal' oxygen from it's mother. This normally has no adverse effects on the pregnant woman other than perhaps feeling a little breathless after mild exercise. HbF has what is described as a 'greater affinity for oxygen' and a 'lower affinity for carbon dioxide' to HbA. This allows the fetus to load oxygen and unload carbon dioxide with more ease than the mother, and so ensuring survival.
Why carbon dioxide is not poisonus?
I'm guessing the question means, why is carbion DIoxide safe, while carbon MONoxide is poisonus. Carbon monoxide binds to hemoglobin molecules and displaces oxygen due to a higher affinity. Red blood cells have separate receptors for carbon dioxide. Carbon dioxide is produced naturally in our body as a byproduct of cellular respiration and is carried away by the red blood cells. Since it does not compete for hemoglobin like carbon monoxide, it is not dangerous.
How is oxygen and carbon dioxide exchanged in the bronchi and lungs?
When air is inhaled it is brought into aveoli, which are very small sacs surrounded by capilaries. These capilaries have blood flowing through them, and oxygen diffuses into the blood and carbon dioxide diffuses out of the blood and into the lungs.
Why is more oxygen is released With the bohr effect?
The Bohr Effect is basically factors that have affected the loading of Oxygen and it means that the amount of Carbon Dioxide is increasing and the amount of PH is decreasing.
What is the most important protein in the physiologically transport of carbon dioxide by blood?
The Bicarbonate Buffer System
How is oxygen transported in the blood?
Hemoglobin is the compound in red blood cells that carries oxygen from the lungs to body cells. The oxygen combines readily with the ion in hemoglobin, and hemoglobin can carry more than twenty times its own volume in oxygen. After releasing oxygen to the cells, hemoglobin collects carbon dioxide and carries it to the lungs where it is exhaled.
Most carbon dioxide in the blood is carried bound to hemoglobin?
No, Unlike oxygen, Carbon Dioxide is mostly disolved in the blood plasma only about 23% is disolved in hemoglobin
