Insect ventilation

Question 1

what is stage one of ventilation in insects?

Answer 1

air diffuses through spiracles

Question 2

what is stage two of ventilation in insects?

Answer 2

air diffuses through tracheae

Question 3

what is stage three of ventilation in insects?

Answer 3

air diffuses down trachioles

Question 4

what is stage four of ventilation in insects?

Answer 4

gases dissolve in fluid

Question 5

what is stage five of ventilation in insects?

Answer 5

O2 diffuses into cells and CO2 diffuses out of cells

Question 6

what is special about active tissues?

Answer 6

they have less fluid, so there is more surface area for exchange

Question 7

what do some insects do to increase air flow?

Answer 7

they move their wings or abdomen or thorax

Question 8

What is in tracheoles?

Answer 8

Tracheal fluid

Question 9

When does water from the tracheal fluid move out?

Answer 9

When lactic acid builds up, water moves out by osmosis, increasing the surface area for exchange of gases