Gas exchange in fish a level exam questions. 4 Mass Transport in Animals QP; 3.
Gas exchange in fish a level exam questions These quizzes make an affective starter, end of lesson review or consolidation activity. 3. It makes exam question answering that little bit more fun :) Dec 26, 2024 · Ventilation Mechanism in Mammals. These adaptations are gills. (a) Why does the highly folded structure of the gills increase the efficiency of gas Study with Quizlet and memorise flashcards containing terms like Do fish have a large or small surface area to volume ratio? Explain why and what does this mean for its gas exchange system?, gill filaments, gill lamellae and others. (2 marks) Bony fish rely on gills for gas exchange. uk/a-level-revision-videos/a-level-biology/In this video, we lo 1(a). air move into tracheae through pores on the surface called spiracles 2. lamellae held edge on to Questions by Topic 2016-2021 papers. Study with Quizlet and memorise flashcards containing terms like Name two types of epithelial tissue found in the lungs and airways?, Explain how the alveoli create a surface efficient for gas exchange [5], Why do the balloons in a glass bell jar model expand? [3] and others. Includes starter activity, an activity including pupils acting gas exchange in fish demonstrating both parallel flow and the benefits of counter current flow, and exam question activity involving the whole class participation. B. 1010 cm. g –1. Calculate the volume of water it will need to pass Jan 22, 2025 · 1. Ventilation (mass flow of gases) in the lungs and the continuous flow of blood in the capillaries helps to ensure that there is always a higher concentration of oxygen in the alveoli than in the blood • large surface area so faster absorption of oxygen Many small rounded alveoli Many branching capillaries • good blood supply Ventilation and circulation of blood ensues a concentration gradient • thin - short diffusion pathway Single layer of flattened epithelial cells • moist - dissolve gases • small capillary diameter Red blood cells have a large diameter and so must squeeze Questions and model answers on The Gas Exchange System for the Cambridge (CIE) AS Biology syllabus, written by the Biology experts at Save My Exams. “Describe” questions are asking you to give an account of something or to write events or processes in a You can find all my A Level Biology videos fully indexed at https://www. The disease causes the lamellae to become thicker and to fuse together. AGD reduces the efficiency of gas exchange in fish, give two reasons why. The gas exchange surfaces of different organisms can be observed using microscopes. C. this means that oxygen diffuses directly into the respiring cells 4. (2) and others. 1. hook question to start and end included. Some of this mist can be inhaled and may eventually lead to fibrosis. (Eduqas AS 2019 paper 2), Explain how a thin gas Exchange surface and high Study with Quizlet and memorise flashcards containing terms like Name two types of epithelial tissue found in the lungs and airways?, Explain how the alveoli create a surface efficient for gas exchange [5], Why do the balloons in a glass bell jar model expand? [3] and others. 2 Gas Exchange QP; 3. Reduces the surface area for diffusion. Sep 11, 2024 · A self marking Forms quiz for AQA A level biology, topic 3, gas exchange in fish. 1 Surface Area to Volume Ratio MS; 3. (c) Name two similarities and two differences between the gas exchange of an insect and that of a mammal. Explain how the counter-current principle allows efficient oxygen uptake in the fish gas exchange system. gill lamellae give a large SA 5. Even if you don't want to stud Study with Quizlet and memorise flashcards containing terms like Explain what the countercurrent flow principle is. 2 Gas Exchange MS; 3. 01 cm. uk/a-level-revision-videos/a-level-biology/In this video, we lo. (3), Describe how oxygen in the alveoli enters the blood capillaries. hook question to start and end included You can find all my A Level Biology videos fully indexed at https://www. To help you grasp the concepts of gas exchange in biology, we’ve compiled a series of exam-style questions with detailed answers tailored for KS3 students. , What doe sthe countercurrent flow ensure?, State the adaptations for efficient gas exchange in fish and others. It is important to be able to identify the gas exchange surface and the key structures present. Study with Quizlet and memorise flashcards containing terms like Describe two adaptations of the structure of alveoli for efficient gas exchange. Remember to pay attention to command words in exams, as they will be asking different things. (4 marks) (b) Suggest why gill lamellae would not provide an efficient gas exchange surface on land. Oct 18, 2024 · Examiner Tips and Tricks. Fire-breathers do this by blowing a fine mist of paraffin oil onto a flame. giving maximum distance for oxygen to flow in and CO2 out/ gas exchange 3. 0. 10 cm. thin surface of lamellae/ short distance between surface of lamellae and blood capillaries 6. g –1 (ii) Analyse the data to explain the difference in the activity levels of these fish Feb 18, 2022 · A level biology – Monosaccharides, disaccharides and polysaccharides A level biology α-glucose and β–glucose and their polymers, glycogen, starch and cellulose A Level biology – Tests for reducing sugars, non-reducing sugars and starch. 3 Digestion and Absorption QP; 3. Fig. (a) Describe and explain how the countercurrent system leads to efficient gas exchange across the gills of a fish. Table 2 shows some features of gas exchange in a fish and in a mammal. (i) The comparison of surface area to mass of mullet is (1) A. (a) Why does the highly folded structure of the gills increase the efficiency of gas I want to help you achieve the grades you (and I) know you are capable of; these grades are the stepping stone to your future. The questions have been designed using the wording and pictures from the syllabus as well as by simplifying real exam questions, including the math. 2. Gas exchange in the lungs requires a concentration gradient. 4 Mass Transport in Animals QP; 3. Feature Fish Mammal Percentage of oxygen extracted from water or air 80 25 Oxygen consumption at rest / cm3 kg–1 hour–1 100 200 Table 2 (b) (i) The fish has a body mass of 0. They often appear very different in photomicrographs than they do in the diagrams found in textbooks. oxygen travels down the concentration gradient towards the respiring cells 3. 1 Surface Area to Volume Ratio QP; 3. counter current/ blood flow in opposite direction to water flow 2. Gas Exchange adaptations: Skin is gas exchange surface Outer body surfaces folded- further increases surface area for diffusion Diameter of approximately 3mm, length up to 45mm- narrow diameter gives shirt diffusion pathway Cylindrical shape- high surface area to volume ratio Behaviour adaptations: Head and front part of body buried in mud- when highly active, less of the body is buried- more Dec 26, 2024 · Gas exchange under the microscope. 3 Digestion and Absorption MS; 3. Let’s explore the fascinating world of gas exchange systems: Question 1: Describe the gas exchange process in the human respiratory system. 10. co. 99 cm. It goes in through the mouth cavity of the fish and out through the gill cover. Many teachers use models to demonstrate and explain breathing and lung function in mammals. Study with Quizlet and memorise flashcards containing terms like Do fish have a large or small surface area to volume ratio? Explain why and what does this mean for its gas exchange system?, gill filaments, gill lamellae and others. (Eduqas AS 2019 paper 2), Suggest why having a tracheal gas exchange system means that insects are not able to grow as large as animals which have a circulatory system and haemoglobin. description of how a counter current works 4. D. Answer: Gas exchange in the human respiratory aqa a level biology topic 3 exam questions. 112 terms. Fish extract dissolved oxygen molecules from the surrounding water. For example, a question asking you to “Describe” the structure of the alveoli is different from a question asking you to “Explain” the structure of the alveoli. 2 kg. Jan 22, 2025 · Study with Quizlet and memorise flashcards containing terms like Q1. Mammal gas exchange Study with Quizlet and memorise flashcards containing terms like Describe changes to the diaphragm upon inspiration. The oxygen content of water is much lower compared to air, so fish have special adaptations which enable them to make the most of the available oxygen. freesciencelessons. Study with Quizlet and memorise flashcards containing terms like Explain why earthworms need a respiratory pigment but insects do not. 4 Mass Transport in Animals MS; 3. AGD reduces the efficiency of gas Mar 18, 2013 · Good for Revision purposes and main class introduction. When the rubber sheet is pulled down the balloons expand. The table shows some information for five species of fish. 1 is a model of the mammalian chest. , The photograph shows a fire-breather creating a ball of fire. 4 Mass Transport in Gills are the site of gas exchange in fish. the tracheae branch off into smaller tracheoles , which have a thin, permeable wall and go to individual cells. (2), Explain how the diaphragm causes air to move into the lungs. , (b) Amoebic gill disease (AGD) is caused by a parasite that lives on the gills of some species of fish. Jul 12, 2023 · Exam questions with answers. People who have been fire-breathers for (c) Name two similarities and two differences between the gas exchange of an insect and that of a mammal. Plus a set of exam questions on gas exchange and ventilation (nb: ventilation not covered in this ppt) Gas exchange in fish: A ppt lesson with information and diagrams on gill adaptations, countercurrent exchnage principle and questions/video to support gills dissection. 4 Mass Transport in Plants MS; 3. zdekk gzmxiid etbcb ptvk foa obuph ldxh btlz zynq btmcbka