« on: March 13, 2016, 02:39:35 PM »
OXYGEN and BLOOD
When we inhale, oxygen from the air we breathe is diffused through membranes and into red blood cells. The oxygen-rich blood then circulates throughout the body and finds tissues in need of oxygen.
Enzymes in the body combine with the oxygen molecules and initiate many metabolic (i.e., oxidative) processes in the body. One of the waste products of oxidation is carbon dioxide, which is then released from the cells into the blood. It combines with hemoglobin and bicarbonates and is transported back to the lungs -- where the process starts all over again.
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Be gentle and you can be bold but also let people feel, the steadiness of your resentment;
be frugal and you can be liberal;
avoid putting yourself before others and you can become a leader among men.
Shahina Haque
Assistant Professor
Department of ETE
FSIT, DIU
