Gas Exchange Flashcards
1
Q
Gas exchange in insects?
A
Oxygen moves down its concentration gradient from enviroment throught the spiracles and into the trachea the trachea then branches out into trachioles whereby o2 diffuses directly to the respiring tissues.
2
Q
What is the counter current system?
A
This where water and blood flows in opposite directions, water with a relatively high concentration of O2 passes blood with a lower concentration of oxygen, maintaining the concentration gradient throught the process.
3
Q
How to calculate surface area?
A
Number of sides X Width X length/height
4
Q
Volume ?
A
Volume = height X width X Length
