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Organize the items listed into the proper sequence of events for gas exchange.
a: O2 is transported to cells by circulatory system.
b: O2 is drawn into the lungs during inhalation.
c: Cells use O2 and generate CO2.
d: CO2 is exhaled.
e: The circulatory system transports CO2 to the lungs.

Respuesta :

In order: b a c e d
and that is the answer

The correct order is O2 is drawn into the lungs during inhalation (b), O2 is transported to cells (a) cells use O2 and generate CO2 (c), the circulatory system transports CO2 to the lung (e) and CO2 is exhaled (d).

  • During inhalation, oxygen enters the lungs, passes through the bronchi and reaches the alveoli, where gas exchange occurs.

  • Oxygen then moves from the alveoli to red blood cells through tiny blood vessels called capillaries.

  • Red blood cells transport oxygen to all body cells, which use this gas during cellular respiration and release carbon dioxide as a byproduct.

  • Finally, carbon dioxide is transported by red blood cells to the lungs where it is removed through exhalation.

In conclusion, the correct order is O2 is drawn into the lungs during inhalation (b), O2 is transported to cells (a) cells use O2 and generate CO2 (c), the circulatory system transports CO2 to the lung (e) and CO2 is exhaled (d).

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