gaseous exchange
- Created by: Lydiawhitehouse
- Created on: 23-06-19 20:30
View mindmap
- gaseous exchange
- diffusion
- gas moves from an area of high concentration to an area of low concentration
- diffusion gradient
- the difference between high and low
- steeper the gradient the greater the gaseous exchange
- where it happens?
- external
- lungs
- alveoli
- internal
- muscle tissue
- external
- PPO2
- oxygenated blood
- PPCO2
- deoxygenated blood
- external respiration
- O2 level in alveoli is high
- O2 moves to an area of low pressure
- the capillaries
- CO" levels in capillaries is high
- moves to an rea of low pressure
- alveoli
- moves to an rea of low pressure
- internal respiration
- O2 levels high in capillaries
- moves to an area of low O2
- the muscle tissue
- moves to an area of low O2
- CO2 levels high in the muscle tissue
- moves to an area of low CO2
- the capillaries
- moves to an area of low CO2
- O2 levels high in capillaries
- assists to diffusion
- thin membrane
- short distance
- large surface area
- moist
- always maintain diffusion gradient
- partial pressure
- the pressure exerted by an individual gas held in a mixture of gases
- association
- the combining of oxygen with haemoglobin to form oxyhaemoglobin
- dissociation
- the release of oxygen from haemoglobin for gaseous exchange
- diffusion
- bohr shift
Comments
No comments have yet been made