Is the repiration is physicalor chemical change ?how?
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Just the Respiration process of breathing in air and breathing out air with less Oxygen and more Carbon dioxide is a physical change for the air. Its composition of elements changes.
But Respiration is a chemical change for the humans or animals. The oxygen present in the air is absorbed by the lungs. Oxygen is transported by the red blood cells. They reach all the cells in all parts. The cells get oxidized and synthesis of proteins takes place and Carbon dioxide is produced.
But Respiration is a chemical change for the humans or animals. The oxygen present in the air is absorbed by the lungs. Oxygen is transported by the red blood cells. They reach all the cells in all parts. The cells get oxidized and synthesis of proteins takes place and Carbon dioxide is produced.
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