Lungs And Breathing Flashcards
What are the three main gases in the air
Oxygen
Carbon dioxide
Nitrogen
What is gas exchange
The swapping of gasses
e.g. swapping CO for O in blood
What is respiration
Respiration is a chemical exchange done by all living organisms
What is the respiratory system
Trachea (wind pipe)
Bronchi
Bronchioles
Alveoli
Where does gas exchange occur
Exchange surfaces e.g. alveoli
What is the chemical equation for respiration
Oxygen + glucose —> carbon dioxide + water
What does asthma do
Tightens the muscles that surround the trachea and causes inflammation
What does smoking do
It hardens the cilia, meaning dust will get into the lungs
What is the cilia
Mucus lined hairs that catch dust going down the airway
What diseases does smoking cause
Lung cancer
Bronchitis
What is the symbol equation for respiration
C6H12O6 + 6O2 —> 6CO2 + 6H2O
