Respiratory system - General overview

3 important questions on Respiratory system - General overview

What is the equation of cellular respiration?

Carbohydrate food (glucose) + oxygen = Carbon dioxide + water + energy
(C6H12O6 + 6 O2 -----> 6 CO2 + 6 H2O)

What does cellular respiration mean for cells?

They need to be supplied with oxygen and glucose and the waist product, carbon dioxide, which is poisonous for cells and needs to be removed

How are the gases (oxygen/dioxide carbon) passed across the alveoli and the blood in the capillaries?

By diffusion

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