-
What does dalton’s law of partial pressure state?
That gases move from an area of high concentration/pressure to lower concentration/pressure.
-
What is hemoglobin?
Hemoglobin is a polypeptide (protein) with iron (R group) that binds to oxygen to form oxyhemoglobin.
-
How are red blood cells able to transport oxygen and carbon dioxide?
Because red blood cells contain several hundred hemoglobin molecules which transport these gases.
-
What does oxygen bind to on the hemoglobin molecule?
Oxygen binds to heme on the hemoglobin molecule.
-
What makes blood red? Why?
Oxygen. Because when O2 is attached to hemoglobin, light bounces off and shows red.
-
When O2 levels are high in the lungs, where does the O2 go?
The O2 leaves the lungs and combines with red blood cells.
-
When CO2 levels are high in the blood, what happens to that CO2?
The CO2 goes into the lungs for expiration.
-
When oxygen levels are high in the blood and low in the cells, where does the oxygen go?
Into the tissue.
-
When carbon dioxide levels are high in the cells but low in the blood, where does carbon dioxide go to?
The carbon dioxide leaves the cells and binds with the red blood cells. (Due to diffusion like the others)
-
CO2 combines with hemoglobin to form:
Carbaminohemoglobin.
-
How is carbonic acid (H2CO3) formed?
CO2, with the help of carbonic anhydrase, combines with H20 to form carbonic acid.
-
What is the chemical formula for carbonic acid?
H2CO3
-
How is carbonic acid disassociated/buffered?
Carbonic acid is disassociated/buffered by hemoglobin.
-
When carbonic acid is disassociated by hemoglobin, what forms?
Bicarbonate ions (HCO3-) and hydrogen (H+)
-
After carbonic acid is disassociated by hemoglobin and forms bicarbonate ions and hydrogen ions, what happens to the bicarbonate ions and the hydrogen ions?
Free hydrogen and bicarbonate form water and carbon dioxide in the lungs, so that is exactly what happens to them. Afterwards, the water and carbon dioxide are exhaled.
-
What is the chemical formula for the disassociation carbonic acid?
H2CO3 —> H+ + HCO3- —> H2O + CO2
|
|
