Gaseous Exchange in Insects 0.0 / 5 ? BiologyBiologyAll LevelsAQA Created by: me543Created on: 22-02-18 15:47 What exchange surface do insects use? The Tracheal System 1 of 8 What are the walls of the trachea strengthened by? Chitin 2 of 8 What does the trachea do? Carries air directly to the cells, where diffusion across the membrane takes place 3 of 8 How does air enter the trachea? The spiracles (openings in the body that are opened and closed by the valves) 4 of 8 How do insects make pumping movements? Using their thorax and abdomen 5 of 8 What happens after air is sucked in through the spiracles? It is passed down the trachea and tracheoles until it reaches the respiring tissues 6 of 8 Where is tracheal fluid? At the end of the tracheoles 7 of 8 What does tracheal fluid do? Allows oxygen to dissolve and diffuse into the tissues 8 of 8
Comments
No comments have yet been made