Has Exchange In Insects

Question 1

Why can’t insects take part in simple diffusion

Answer 1

Waterproof outer covering

Small surface area to volume ration

Question 2

How have inspected tracheal are adapted for rapid diffusion diffusion pathway

Answer 2

The tracheole enter directly into the cell theat are respiring so air delivered directly into the cell so decreasing diffusion pathway

Question 3

How does insects maintain surface are

Answer 3

Increase sa by trachea into tracheole so larger surface area so more gases can be exchanged at a given time

Question 4

How is the mass movement created

Answer 4

The abodinal pumping squeezes the trachea so increase the flow of air that can be exchanged and speeds it up

Question 5

How is the pathway of air increases in speed

Answer 5

The muscles surrounding the trachea take part in anaerobic activity decreasing water potential in these cells causing water from the trachea to move into the muscle cells so decreases the water in the trachea so last stage is air which draws oxygen further into the trachea

Question 6

What are spiracles

Answer 6

Holes found on the surface of ilrhe insect which allows air to enter and can close when water is evaporations in order to close spiracles normally insect or is at rest or using the air sacs nearbye