Question

Give the path travelled by a molecule of oxygen when it enters the body.

Answer 1

In our body oxygen enters from our nostrils then goes to the pharynx and larynx and then finally entered into the lungs the alveoli which is surrounded by several blood capillaries the oxygen is filled in the elevator sec then the oxygen comes in the cell where the concentration of oxygen is less + O2 from cell goes to alveoli in this manner the respiration process takes place in the body.Please mark as brainliest answer

Answer 2

in our body oxygen enters from our nostrils then goes to the pharynx and larynx and then finally entered into the lungs the alveoli which is surrounded by several blood capillaries the oxygen is filled in the elevator sec then the oxygen comes in the cell where the concentration of oxygen is less + O2 from cell goes to alveoli in this manner the respiration process takes place in the body