Gas exchange in fish exam questions
WebGas exchange in the fish - Exam questions Q1. There are many different species of annelid worm. Some are very small, only a few millimetres in length. Others, such as lugworms, are much larger. The drawing shows a lugworm and part of one of its gills. (a)Smaller species of annelid do not have gills. WebTest Yourself Gas Exchange in Fish & Insects Tracheal System of an Insect All insects possess a rigid exoskeleton with a waxy coating that is impermeable to gases Insects …
Gas exchange in fish exam questions
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WebGas exchange in the fish - Exam questions Q1. There are many different species of annelid worm. Some are very small, only a few millimetres in length. Others, such as … WebMar 21, 2024 · 1. How does Active Transport differ from diffusion? A. It is the movement of molecules B. Takes place across a cell membrane C. Is used in the re-absorption of glucose by the kidney D. Uses ATP (energy) E. Is used by root hair cells to uptake mineral ions from the ground. 2. Where does gas exchange take place in a mammal? A. Lungs B. …
WebThe exchange surfaces in fish are gills. Fish gills Water is taken in through the fish's mouth, passes over the gills, and then out under the operculum Exchange of gases in fish is very... WebDec 28, 2024 · Fish have thick skin that enable them to be waterproof however the result of this is gases cannot readily diffuse through the skin. Fish also have a small surface area : volume ratio Body surface therefore cannot supply adequate amount of respiratory gases Structure of the Gills The gills are located within the body of the fish behind the head
WebExplain the advantage of foetal haemoglobin. - higher affinity for Oxygen than mother haemoglobin. - Takes oxygen from it. - To supply oxygen to foetus. Abdominal pumping increases the efficiency of gas exchange between the tracheolesand muscle tissue of the insect. Explain why. - More oxygen enters tracheae. WebAug 9, 2024 · Discuss how gaseous exchange occurs in (a) Terrestrial Insects (9 marks) (b)Bony fish (11 marks) Click here to reveal the answer to question 1 2. (a) Explain how mammalian lungs are adapted for gaseous …
WebPractise Edexcel sample exam questions with BBC Bitesize GCSE Biology. ... which are the gas exchange surface between the lungs and blood capillaries ... the fish heart only has one ventricle and ...
Webgas exchange can occur. They also developed a thin surface which make the diffusion pathway shorter. Insects 1. Insects developed a tracheal system for gas exchange. 2. … how many words are 7 minutesWebwhere gas exchange can occur. They also developed a thin surface which make the diffusion pathway shorter. 3. There are mesophyll cells (middle leaf) which serves for gas exchange. These cells contain pores called stomata that open to allow gas exchange, and close to control loss of water. The closing and opening of these pores is controlled by ... how many words 2 minutesWebMar 18, 2013 · Includes starter activity, an activity including pupils acting gas exchange in fish demonstrating both parallel flow and the benefits … how many words are a novellaWebhow does gas exchange occur in a single-celled organism? they are small organisms so have a large surface area to volume ratio and therefore can exchange substances through diffusion across their body surface how are respiratory gases moved in and out of an insect along a diffusion gradient? how many words a minute speechWebGas exchange in insects refers to the process of exchanging oxygen and carbon dioxide between the insect’s body and the environment. →How do insects exchange gases? Insects exchange gases through a system of … how many words a4 size 12WebTable 2 shows some features of gas exchange in a fish and in a mammal. Feature Fish Mammal Percentage of oxygen extracted from water or air 80 25 Oxygen consumption at rest / cm. 3 . kg 1 . hour 1. 100 200 Table 2 (b) (i) The fish has a body mass of 0.2 kg. Calculate the volume of water it will need to pass how many words are a sentenceWebLearn the adaptations of the gills for gas exchange in the fish. This covers the structure of gill filaments, gill lamellae and the countercurrent exchange ... how many words 8 minutes