Repiratory System

Question 1

The Path of Air

Answer 1

• Air goes through the respiratory system right to the alveoli
— • Alveoli have capillaries (small blood vessels) that allow oxygen and carbon dioxide to pass back and forth between lungs and blood

Question 2

Respiration

Answer 2

• This happens in the cells – not the respiratory system
—• It is how cells make their energy
—• Mitochondria in the cells convert sugar (glucose)
and oxygen into carbon dioxide and water
—• As this chemical reaction happens it releases energy which the cell uses to perform its role

Question 3

Respiration Arrow Thing

Answer 3

Glucose + Oxygen —> Water + Carbon Dioxide + Energy