Test Flashcards
What are the hairs in your throat called
Cillia
What is the anaerobic equation
Glucose> lactic acid + energy ( atp) ( less energy)
What is the aerobic equation
Glucose+oxygen> carbon dioxide +water+ energy (atp)
where does respiration occur
Mitochondria
Which one gives off the most energy
Aerobic
Remember
Last question the answer is paralyse
What is the model of the lungs called
Bell jar
Label the lung diagram
Trachea -need
Intercostal muscles
Alveolus-need
Ribs
Lung
Diaphragm
Bronchis bronchiole
What happens to diaphragm and ribs when you breath in
Diaphragm moves contracts and flattens
Ribs move ups and out
How does pressure in the lungs change when the volume increases?
Decreases
Name the process by which gas exchange occurs
Diffusion
Describe two ways the structure of the alveolus is adapted for this function
Large surface area thin wall( one cell thick) or close blood supply
Label the diagram on the alveolus
Bronchiole - on the test
Name the gas y shown on the diagram above
ANSWER IS CO2
Explain how gas x passes from the alveolus into the blood capillary
- Oxygen
- Diffuses into blood capillary
What re the gases number of inspired and expired are
O2 21% 16%
CO2 0.04% 4%
N2 79% 79%
Water vapour Varies <1%
What is the difference in percentage efficiency of a 60 year old non smoker and a 60 year old heavy smoker
REMEMBER
93-48=45
Continuing to make heavily can damage the lungs and lead to disability . At what age does the graph show this disability occurring
65.5/66
Suggest what lung damages mentioned in (I) could be
Lung cancer/ emphysema
Susan is a 50 year old smoker. Use the graph opposite to suggest what Susan might expect to happen if she gives up smoking now
- Lives longer( lives to 85)
- Live longer without a disability
WHAR happens during inspiration and how
Air moves through the nasal cavity then goes to the trachea, bronchus, bronchiole, alveoli, and diffuses into blood stream. The intercostal muscles contract and flattens the ribs move up and out diaphragm contracts and flattens volume increases pressure decreases and air is drawn in.
