Gas Exchange Flashcards
Describe the differences between inhaled and exhaled air, ( inhaled air)
More oxygen - 21%
Less carbon dioxide - 0.04%
Nitrogen- 78%
Argon+ other gases 0.96
Describe the differences between inhaled air and exhaled air( exhaled )
Less oxygen 16%
More carbon dioxide 504%
Nitrogen 78%
Argon + other gases 0.96
Exhaled+ inhaled air word equation
Glucose+ oxygen —— carbon dioxide+ water + energy
Describe the movement of ribs during inhaling and exhaling. Air in ( active )
Rib cage moves upwards + outwards
Diaphragm moves downwards
Describe the movement of ribs during inhaling and exhaling. Air out ( passive )
Rib cage moves downwards + inwards
Diaphragm moves upwards
Explain why these differences force air in and out ( ribs and diaphragm)
Changing the volume and pressure of the chest cavity
Describe features of the alveolus that make it good at its job.
1 cell thick - this allows diffusion to happen easily.
Close blood supply
Explain how gases move across the alveolus l/ capillary
Diffusion from high concentration to low concentration
Describe how to measure lung volume and which factors might affect it.
After you exercise your tidal volume will increase because your muscles work harder, your heart beats faster and you will increase the volume of air going into your lungs.
Write the word equation for aerobic respiration.
Glucose+ oxygen—– carbon dioxide + water
Write the balanced chemical equation for aerobic respiration
C6 H12 06 + 602 —- 6C02 + 6H20
Describe the function of respiration
To make energy
In all cells
All the time
In all living things
State where in a cell aerobic respiration happens
Mitochondria
Explain how oxygen gets to respiring cells
By red blood cells containing harmoglobin
Describe the pathway of air as it moves into the lungs.
Nose Mouth Trachea Bronchi tubes Lungs Bronchioles Alveoli
