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You are a single hemoglobin molecule in a red blood cell. Describe what would happen to...

You are a single hemoglobin molecule in a red blood cell. Describe what would happen to you in the pulmonary capillaries and in the systemic capillaries. Also, what would happen to you if your human fell into cold water and had her body temperature lowered by 2 degrees Fahrenheit

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Answer :-

At pulmonary capillaries :- oxygen will diffuse from alveoli into the capillaries where erythrocytes are present .Each erythrocytes contain hemoglobin and hemoglobin contain four heme molecules.This heme molecules are capable of carrying up to four oxygen molecule.

When oxygen diffuses from alveoli into the capillaries it binds with this hemoglobin to form oxyhemoglobin molecule and transpoted to the heart and then through systemic circulation to rest of the body.

When oxyhemoglobin molecule arrive at the systemic capillaries it releases oxygen molecule to the body cell.

Effects of cold on hemoglobin :-

At low temperature effects of DPG on oxygen affinity increases as a result the ability of hemoglobin molecule to transport oxyegn molecules will diminish i.e hemoglobin molecule will not hold oxygen molecules tightly and will release more oxygen near tissue.

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