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BIL 116 (61)
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Lecture

respiratory gas

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Department
Biology
Course
BIL 116
Professor
marsonline
Semester
Fall

Description
Haemoglobin and Hydrogen Carbonate Ions carry Respiratory Gases and Control Blood Ph Haemoglobin Transports OxygenLower atm pressurefewer molecules presentless O2 reaches tissuesBody adapts to changes by increasing o Heart rate and resting breathing rate o Blood plasma o Red blood cell production and number of blood capillariesHaemoglobin Hb has 4 subunits each subunit contains 2 parts o Haemring of atoms linked to Fe2 o Globinpolypeptide chain o Sequence of amino acids affects O2 carrying propertiesOxyhaemoglobin HbO2 from lungs dissociates in respiring tissues o O2 diffuses into body cells while Hb is transported back to lungsFeatures of red blood cells that allow them to transport O2 more efficiently o Biconcave disclarger surface area to volume ratio for diffusion o Absence of nucleiother organellesmore room for haemoglobin Hydrogen Carbonate Ions Remove CO2CO2 produced in tissues diffuses into blood plasmaThere it reacts with H2O in the pla
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