WebAnother video on Exchange!In this video we examine the gills as an example of an exchange surface. We also discuss how fish pass water over their gills and h... WebAquatic arthropods generally possess some form of gills in which gas exchange takes place by diffusing through the exoskeleton.Others may breathe atmospheric air while remaining submerged, via breathing tubes or trapped air bubbles, though some aquatic insects may remain submerged indefinitely and respire using a plastron.A number of …

Fish gill - Wikipedia

WebNo, fish have never had lungs. Fish have developed unique respiratory systems that allow them to extract oxygen from water instead of air. Fish absorb oxygen by extracting it … WebFish gills are made up of thin plates called gill filaments, which are covered in structures called lamallae.Both the gill filaments and lamellae provide a large surface area for gaseous exchange, increasing the efficiency of diffusion.The lamellae have many blood … grignard reagents

GCSE Biology - How are Exchange Surfaces Adapted to Their

WebThe water flow through the fish’s mouth as well as the blood in gill capillaries follow the countercurrent principle. As seen in the above diagram, water and blood flow against … Webta) Fish do not have lungs. They use gills for gas exchange. Fish gills have similar adaptations to the alveoli in lungs Suggest how fish gills are adapted for gas exchange DO NOT WRITE IN TUS ARBA DO NOT WRITE IN THE AREA WRITE THIS AREA 17 (b) A person keeps small fish in a glass container called an aquarium The diagram shows … WebMost fishes exchange dissolved oxygen and carbon dioxide in water using gills which lie behind and to the side of the mouth cavity. The circulatory system consists of the heart, arteries, capillaries, and veins. The heart pumps the blood to the gills to be re-oxygenated. From there, blood is distributed to the tissues and organs of the body. grignard reagent plus water