Gas exchange Flashcards
1
Q
Name the organ where gas exchange occurs
A
Lungs
2
Q
what kind of tissue are our lungs made of and why
A
elastic tissue- so our lungs can expand when we breathe
3
Q
what carries the oxygen to the cells in our body
A
blood
4
Q
what is the first stage of the respiratory system
A
the air moves down the trachea (windpipe)
5
Q
What is the final stage of the respiratory system
A
oxygen diffuses into the blood
6
Q
what are alveoli
A
tiny air sacs at the end of the bronchioles
7
Q
name an adaptation of the alveoli
A
they have a large surface area and thin walls to help gas exchange occur quickly
8
Q
oxygen is used in ……. to transfer energy
A
respiration
9
Q
what does respiration produce
A
carbon dioxide
