KINE 2011 Lecture Notes - Cookie Jar, Oxygen Saturation, Heme
29 Mar 2014
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Document Summary
Blood is like a highway system, it"s a way all the nutrients can get into the system ( happens via bulk flow) 3ml is very less ( 1 teaspons is 5ml) Blood circulates around your body . (while sitting) 3ml (oxygen) x 5l of blood =15ml of o2 is carried. A total of 15ml of o2 is carried dissolved in the blood per minute. At rest, (not eating) we need about 250ml of oxygen per minute to just surive to do basal functions ( basic functions, breathe, stay awake, tissues to survive) 15ml is very less, (not enough ) therefore we need to make up the 235ml/min o2 difference. Protein in our red blood cells haemoglobin is made of 4 globin subunits that contain 4 heme groups hence the name haemoglobin. Each one of the heme molecules contains an iron molecule that can bind oxygen Every 4 heme group can can carry 4 oxygen molecules.
