how human respire explain it with diagram
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when humans respire they take in oxygen ,
humans have a system of aerobic respiration, in a cell a 3 carbon molecule carbon is broken down into a 3 carbon molecule called pyruvate and this happens in the cytoplasm of the cell of mitochondria,
the alveoli inside the lungs provide the surface area for exchange of gases ,
the filtered air having oxygen reaches the alveoli.the alveoli are connected to blood vessels the oxygen is absorbed by the haemoglobin of the blood and supplied to different cells
if u dont understand what are alveoli or what happens to the oxygenated or deoxygenated blood pls do mssg me m there to help
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