adaptations for gas exchange in insects

Question 1

state fick’s law

Answer 1

rate of diffusion is proportional to SA x diffusion gradient / diffusion distance

Question 2

feature of the tracheal system that gives a large surface area ?

Answer 2

the tracheal system is highly branched

Question 3

feature of the insects gas exchange system that ensures the diffusion distance is short ?

Answer 3

each respiring cell is close to a tracheole tube

Question 4

what feature of the insect helps to force out CO2 out of the insect ?

Answer 4

abdominal pumping

Question 5

what feature of the gas exchange system ensures a diffusion gradient is always present ?

Answer 5

• the process of aerobic respiration maintains a diffusion gradient for O2 and CO2