Gas exchange Flashcards
(48 cards)
What is the word equation for aerobic respiration
Oxygen+ glucose >carbon dioxide + water+energy
Order of lung system
Mouth, trachea, bronchus, bronchioles, alveoli, diaphragm
Adaptations of alveoli
Thin moist walls, large surface area, lots of capillaries (to take oxygen from lungs to blood and land co2 back to lungs)
Ventilation
Oxygen in CO2 out
When breathing in - intercostal muscles
Contract
When breathing in- ribs
Move up and out
When breathing in- diaphragm muscles
Contract
When breathing in- diaphragm
Lower
When breathing in- volume of chest
Increases
When breathing out- intercostal muscles
Relax
When breathing out- ribs
Move down and in
When breathing out- diaphragm muscles
Relax
When breathing out- diaphragm
Will raise
When breathing out- volume of chest
Decrease
Lung diseases
Pleurisy, Asthma, Tuberculosis, Lung Cancer
What is Pleurisy
The inflammation of pleura the lining that surrounds the lungs causing: chest pain, pain in back and shoulders, coughing up blood
What is Asthma
The inflammation of narrow airways in lungs causing: wheezing, coughing, tight chest, breathless, fast heartbeat
What is Tuberculosis
An infection of bacteria in commonly lungs but occasionally on other parts of body causing, lack of appetite, fever, night sweats,
What is lung cancer
Abnormal cells grow out of control causing tumours causing: coughing, chest infection, cough up blood, lack of energy, loss of appetite
Word equation for anaerobic respiration
Glucose>lactic acid+energy
Difference between anaerobic and aerobic
Aerobic with oxygen, anaerobic without oxygen
Fermentation
Type of anaerobic respiration but in plants
Word equation for fermentation+yeast
Glucose>ethanol+carbon dioxide
How does yeast help bread rise
CO2 trapped as bubbles causing small wholes making the bread rise. It can also make alcoholic drinks e.g.cider…
