1
Q
Insects have exoskeletons made up of what?
A
Chitin
2
Q
What is the system of gas exchange for insects?
A
Tracheal system
3
Q
What is the tracheal system made of?
A
Tracheae, traceoles and spiracles
4
Q
Name the three ways in which respiratoy gases move in and out of the tracheal system?
A
- Along a diffusion gradient
- Through mass transport
- When the ends of the traceoles are filled with water
5
Q
What is Ficks law
A
diffusion = surface area x concentration gradient / length of diffusion pathway
Bio Mr King
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