Gas Exchange In The Lungs - biology Flashcards
What does the nose have ?
Cilia to filter dust and dirt it also moistunes and makes the air warm
What is the structure of the respirera system ?
Nose
Mouth
Throats Voicebox Trachea Bronchioles Air sacs - alveoli
What is the trachea ?
It is the wind pipe it has C shape cartilages and cilia
What does the airs sacs have ?
A large surface area with gas exchange they also have a thin wall and a good blood supply
What is the rib cage made out of ?
Bone and muscle
What is inhaling
Inhaling is to get oxygen into your body
What is exhaling
To remove the carbon dioxide from your body
What is respiration ?
It is the process that happens inside cells when glucose is broken down using oxygen into carbon dioxide , water and energy
How much carbon dioxide is in inhaled air
0.04 percent
What is the word equation of respiration ?
Glucose + oxygen =>carbon dioxide + water
How much oxygen is there in inhaled air ?
20.96
How much nitrogen is there in inhaled air ?
79 percent
How much oxygen is in exhaled air
16 percent
How much nitrogen is in exhaled air ?
79 percent
How much carbon dioxide is in exhaled air ?
4 percent
What happens to the rib cage when you inhale
It goes up and out
What happens to the rib cage when you exhale ?
It goes down and in
What happens to the diaphragm when you inhale
It flattens
What happens to the diaphragm when you exhale
It goes dome shaped
What happens to the volume of the lungs when you inhale ?
Increases
What happens to the volume of the lungs when you exhale
Decreases
What happens to the pressure inside the lungs when you inhale
Decreases
What happens to the pressure inside the lungs when you exhale
Increases
What can lung volume depend on ?
Excersize , smoking and asthma
