Biology - Gas exchange in other organisms 3.0 / 5 based on 4 ratings ? BiologyHuman, animal and plant physiologyASAQA Created by: HannahCavielCreated on: 11-05-16 11:18 Air enters an insect through holes called Spiracles 1 of 20 Where these entrance holes located on the insects body Along the side of their body 2 of 20 What is an adaptation insects have to prevent valuable water from escaping through the entrance holes? The holes can be opened and closed using tiny valves 3 of 20 Why does having an exoskeleton make it difficult for gas exchange? As it has a waxy surface making it waterproof which makes it difficult 4 of 20 Where do the entrance holes take the air to in an insect? trachea and then into tracheoles 5 of 20 What is the benefit of narrower tracheoles? (insect) Shorter diffusion distance to each cell 6 of 20 Where do tracheoles travel to in an insect? between cells and into muscle fibres, where respiration takes place 7 of 20 why are there rigid rings in the trachea on an insect? to keep air passages open 8 of 20 How do larger insects take in more oxygen on top of this? squeezing their abdominal segments together, pumping air into the sacs 9 of 20 Bony fish have gill arches, where are these located? by either side of their head 10 of 20 What is located on the bony gill arches of a fish? filaments 11 of 20 What is on top of each of the filaments on a fish? lamellae 12 of 20 What does the surface of a lamellae look like? a single layer of flattened cells 13 of 20 What feature of a fish protects the gills from damage? the operculum 14 of 20 Where does the fish take in water the mouth 15 of 20 From there, where does the water go in a fish through the gills 16 of 20 Why does water trvel through the gills of a fish? to maintain a current of water over them 17 of 20 where does the water from the gills travel to after this? out of the operculum 18 of 20 What system is in place in the fish in order to maintain a diffusion gradient? counter-current system 19 of 20 what directions do the water and blood flow in a fish in opposite directions 20 of 20
Comments
No comments have yet been made