Thin exchange surface to give a short diffusion pathway Partially permeable to allow selected materials to cross Movement of the environmental medium (e.g. AS Cells, Exchange and Transport Question Paper Cells, Exchange and Transport Mark Scheme. Author: Created by HenrikHanson. Revise GCSE/IGCSEs and A-levels! Although they are organised following the AQA A Level Biology Specification, there will obviously be a lot of overlap in content with the other exam boards such as OCR. 1 The hard exoskeleton does not allow gaseous exchange to take place. Although they are organised following the AQA A Level Biology Specification, there will obviously be a lot of overlap in content with the other exam boards such as OCR. t r a c h e a �! This surface must have: large surface area; thin permeable surface; moist exchange surface; Gas Exchange in Plants. OCR AS and A Level Biology B (Advancing Biology) - H022, H422 (from 2015) qualification information including specification, exam materials, teaching resources, learning resources FREE videos to help you learn content and revise. Adead spaceBresidual volumeCtidal volumeDvital capacityYour answer 4 What is the term used to describe the largest volume of air that can be exchanged in one breath? Home About GCSE A-Level AS Past Papers Contact. AThe pressure decreases causing the volume to increase.BThe pressure decreases causing the volume to decrease.CThe pressure increases causing the volume to increase.DThe pressure increases causing the volume to decrease.Your answer 7 A spirometer can be used to help diagnose a lung condition, such as asthma. l a r y n x �! A1, 2 and 3BOnly 1 and 2COnly 2 and 3DOnly 1 Your answer 19 In bony fish, what is the operculum? blood) Gas exchange in single-celled […] OCR A-Level Biology A (H420 & H020) and Biology B Advancing Biology (H422 & H020) past (exam papers and marking schemes, the past papers are free to … Thanks for looking Please remember to leave feedback, for updates and promotions you can also follow me here By clicking on HYPERLINK "mailto:resources.feedback@ocr.org.uk?subject=I%20liked%20the%20Biology%20A%20and%20Biology%20B%20Exchange%20Surfaces%20mulitple%20choice%20quiz" �Like� or HYPERLINK "mailto:resources.feedback@ocr.org.uk?subject=I%20disliked%20the%20Biology%20A%20and%20Biology%20B%20Exchange%20Surfaces%20mulitple%20choice%20quiz"�Dislike� you can help us to ensure that our resources work for you. Multi-celled creatures on the other hand tend to have a low surface-area-to-volume ratio, meaning their outer surfaces cannot exchange substances fast enough for all their cells. Ahumidifying the airBwarming the airCreducing surface tensionDpreventing dehydrationYour answer 17 Which polysaccharide is found in the exoskeleton and tracheae walls of most insects? Learn vocabulary, terms, and more with flashcards, games, and other study tools. Designed for the CIE A Level Biology (9700) syllabus, for examinations from 2022 Model answers made by experienced teachers AQA GCE Biology AS Award 1411 Unit 2 Gas exchange … Resources for Applied Ecology, Core Principles/Foundation, Energy, Control and Continuity, Genes and Genetic Engineering, Microbes and Disease, Physiology and Transport, Reproduction and Population. Gases enter leaf through stomata under leaf. Where does most gaseous exchange occur in insects? A Level Biology: 3 Written papers A Level paper 1 - Biological processes (135 mins) 37% weighting Structured and multiple choice questions Assesses modules 1,2,3 and 5 A Level paper 2 - Biological diversity (135 mins) 37% weighting Structured and multiple choice questions Assesses modules 1,2,4 and 6 A Level paper 1 - Unified Biology (90 mins) References from previous Science tutors may be … AS. Student Books tailored to the latest (2015) OCR A Level Biology, Chemistry and Physics specifications, written by subject experts Ocr biology exam style questions. The Multiple Choice Past Paper Cambridge exams up until 2016 (papers 11/12/13) have been sorted by topic along with their answers for revision. Countercurrent exchange system is set up to ensure that a steeper concentration gradient is maintained than if water and blood moved in the same direction, Sharp scissors, scalpels, tweezers, mounted needles. DiaphragmInternal intercostal musclesExternal intercostal musclesAcontractedcontractedrelaxedBcontractedrelaxedcontractedCrelaxedcontractedrelaxedDrelaxedrelaxedcontracted Your answer 6 During expiration (exhalation), which of the following is true about the thorax? General Biology Set 2 MCQ . Carbohydrate Questions Lipids Questions Enzyme Questions DNA Questions Cells Questions Transport in cells Questions Mitosis Questions Immunology Questions DNA, Genes & Chromosomes Questions Genetic diversity Questions Taxonomy Questions Biodiversity Questions … When the email template pops up please add additional comments if you wish and then just click �Send�. Molecules, Biodiversity, Food and Health Mark Scheme A Level Communication, Homeostasis and Energy Question Paper. Avital capacityBbreathing rateCresidual volumeDtidal volume Your answer 9 The air in the trachea, bronchi and bronchioles is termed the �dead space�. OCR AS and A Level Biology B (Advancing Biology) - H022, H422 (from 2015) qualification information including specification, exam materials, teaching resources, learning resources You'll need to sign up for an account to access the questions. Subscribe . Aatmospheric airBalveolar airCair in the dead spaceDexhaled airYour answer 12 When oxygen diffuses from the alveolus into the plasma, how many cell layers does it cross? Start quiz. Alarge surface areaBthin epitheliumCmicrovilliDmaintained concentration gradientYour answer 2 Streptococcus pneumoniae is a spherical-shaped bacterial pathogen that is best known for causing the respiratory illness pneumonia in humans. Some questions might require synoptic thinking, using knowledge and ideas from various topics across the full A Level content. First created in 2000 and updated in 2013, 2015 & 2020 . Exchange Surfaces. Biology Revision - PMT - physicsandmathstutor Ocr a level biology exam questions by topic. Some questions might require synoptic thinking, using knowledge and ideas from various topics across the full A Level content. Sample exam questions - exchange and transport in animals Understanding how to approach exam questions helps to boost exam performance. A level year two interactive quizzes Section 5 Energy transfers. Level. AcartilageBsmooth muscleCciliaDmicrovilliYour answer 11 Which one of the following has the highest concentration of oxygen? A and As Level Biology 9700 Cambridge International AS and A Level Biology builds on the skills acquired at Cambridge IGCSE (or equivalent) level. Instructions and answers for teachers . If the oxygen concentration is lower than this trout numbers decline. OCR A Level Biology past paper exam questions organised by topic with model answers. t r a c h e a �! Molecules, Biodiversity, Food and Health Question Paper. Talk to your teachers, parents, guardians and peers about your concerns for this time and ways in which you feel you need to be encouraged and supported so that you can manage your responsibilities healthily. That said there will obviously be a lot of overlap in content with the other exam boards. This changes the amount of air reaching the lungs. High surface area to volume ratio, low metabolic activity, rate of diffusion is enough. Past papers, summary notes, factsheets and past exam questions by topic for AQA, CIE, Edexcel, OCR and WJEC Biology AS and A-Levels Ocr a level biology exam questions by topic A l a r y n x �! OCR A Level Biology- Exchange Surfaces. A-level OCR biology past papers. + = c � V � � Athe main site of gaseous exchange in fishBa supporting structure for the gillsCa bony flap covering the gillsDa collection of blood vessels found in the gillsYour answer 20 Trout are a large bony fish found in the UK and are an important indicator species for the health of our rivers, lakes and estuaries. Why does water move over the gills in a different direction to blood in the gill filaments? Unit of work, including PowerPoint lesson plans and student notes to print, as well as exam questions and mark schemes for some lessons. 5 33 customer reviews. All questions come from actual A-level biology past papers . p h a r y n x �! Avital capacityBbreathing rateCresidual volumeDtidal volume Your answer 9 The air in the trachea, bronchi and bronchioles is termed the �dead space�. Why don't single cellular organisms need specialised exchange surfaces? Welcome to CramNow, a collection of thousands of FREE, self marking, A Level multiple choice questions. Biology A AS/Year 1. �) �� � 0� L� � � � � � � � $ Ӿ � �� . Just as when following the AQA A Level Biology qualification, your A Level students studying OCR Biology A will need to demonstrate to you, their teacher(s), that they are consistently and routinely competent in each of the skills and techniques defined for A Level Biologists. A-Level Biology revision notes, videos and more for OCR. b r o n c h u s B l a r y n x �! Practice exam-style questions including multiple choice, maths, practical and synoptic questions Ocr biology exam style questions You still gain credit for answering correctly on the seond attempt. Can You Get Through This A-Level Biology Quiz? Molecules, Biodiversity, Food and Health Question Paper. �) |o a� إ إ إ \� � | .) Sample exam questions - exchange and transport in animals Understanding how to approach exam questions helps to boost exam performance. To make your choice easier, the outline of the material that is covered throughout the A-Level Biology OCR course is provided below: Development of practical skills in Biology; Cells, chemicals for life, transport, and gas exchange (cells and microscopy, water, proteins and enzymes, nucleic acids, the heart, transport systems in mammals and plants, gas exchange in mammals and plants); Performing well with your OCR A-level biology is getting your planning and support right. If you are not sure of the correct answer, use what you do know to narrow down the possibilities. A a l v e o l u s B b r o n c h i o l e C b r o n c h u s D t r a c h e a Y o u r a n s w e r 1 6 How does surfactant prevent the alveoli from collapsing? Created: Mar 26, 2016 | Updated: Feb 22, 2018. Enzymes. Courses. Specimen Papers < > 2017. Perfect revision resources for OCR A Level Biology. OCR biology paper 2 2019 discussion OCR A-Level Biology Paper 3 17th June 2019 - Unified Biology [Unofficial Markscheme] Over 1000 A-Level Biology Exam Questions Aqa a-level biology 7402 - paper 2 - unofficial mark scheme 13th June 2019 Exam Board: OCR Level: A-level Subject: Biology First Teaching: September 2015 First Exam: June 2016. A a l v e o l u s B b r o n c h i oleCbronchusDtracheaYour answer 16 How does surfactant prevent the alveoli from collapsing? AS Papers 1 & 2 Molecules, Biodiversity, Food and Health Mark Scheme A Level Communication, Homeostasis and Energy Question Paper. Thank you. A1, 2 and 3BOnly 1 and 2COnly 2 and 3DOnly 1 Your answer Multiple Choice Questions (MCQ) topic quiz Exchange surfaces Learner Activity 1 Which one of the following is not a feature of most efficient gas exchange surfaces? b r o n c h u s D p h a r y n x �! ��ࡱ� > �� Traditionally soda lime was used in a spirometer. Gas exchange multiple choice This site is intended as an educational resource. Question Paper. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Multiple Choice Questions (MCQ) topic quiz. Created: Mar 26, 2016 | Updated: Feb 22, 2018. This Lesson Element supports OCR AS and A Level Biology A (H020/H420) and Biology B (Advancing Biology) (H022/H422). 2 Water loss can be controlled by the opening and closing of spiracles. This is because, being so small, diffusion occurs readily as their surface area to volume ratio is high.. DiaphragmInternal intercostal musclesExternal intercostal musclesAcontractedcontractedrelaxedBcontractedrelaxedcontractedCrelaxedcontractedrelaxedDrelaxedrelaxedcontracted Your answer 6 During expiration (exhalation), which of the following is true about the thorax? b r o n c h u s �! Past Papers. You'll need to sign up for an account to access the questions. Tracheal fluid in the tracheoles limits diffusion of oxygen into cells, lactic acid build up will cause water to leave the tracheoles by osmosis, oxygen can then diffuse into surrounding cells, To limit the penetration of air for diffusion. When distributing the activity section to the learners either as a printed copy or as a Word file you will need to remove the teacher instructions section. Welcome to CramNow, a collection of thousands of FREE, self marking, A Level multiple choice questions. AQA GCE Biology AS Award 1411 Unit 2 Gas exchange Gas Exchange Answers & Markscheme Question 1 Question 2 . A3:1B4:1C5:1D6:1Your answer 3 What is the term used to describe the volume of gas breathed out in one normal breath? Why does little gaseous exchange occur in the tracheae? These have been made according to the specifications (H020, H420, H021, H421) and cover all the relevant topics for examination in May/June. l a r y n x �! 2. What is the purpose of the soda lime? Both include multiple choice, short answer (structured questions, problem solving, calculations, practical) and extended response questions. Adead spaceBresidual volumeCtidal volumeDvital capacityYour answer 5 During inspiration (inhalation), which of the following is correct? All Notes; Biology; Exchange and Transport; Exchange Surfaces Biology revision resource made by teachers. Module 3: Exchange and Transport. How is a large surface area created in insects? 5 33 customer reviews. The questions in this quiz cover topics mainly from specification section: Biology A 3.1.1 Exchange surfaces Biology B (Advancing Biology) 2.2.3 Gas exchange in mammals and plants.Multiple Choice Questions (MCQ) topic quiz - answers 1 Which one of the following is not a feature of most efficient gas exchange surfaces? If you miss a lesson or your teacher says something you don't understand I can help! Biology Multiple Choice Questions and Answers for Different Competitive Exams. Past papers: Use this link to access past papers that will help support your answers. 200-300 micrometres, large surface area so high surface area to volume ratio, good blood supply, good ventilation, thin layers, lung surfactant. Increase the amount of air moved through the gas exchange system, inflated and deflated by ventilating movements of the thorax and abdomen, Explanation for why fish have the gas exchange system that they have, Too much energy to move dense water in and out of lung like respiratory organs, Large surface area, good blood supply, thin layers, tips of adjacent gill filaments overlap, water moving over the gills and the blood in the gill filaments flow in different directions, Efferent blood vessel, afferent blood vessel, gill lamellae, gill filaments, Role of the efferent blood vessel in fish, To carry the blood leaving the gills in the opposite direction to the incoming water to maintain a steep concentration gradient, Role of the afferent blood vessel in fish, Flow of water to keep them apart to expose the large surface area needed for gaseous exchange, Continuous movement of water to ventilate the gills, Mouth opens, floor of buccal cavity lowers, volume of the buccal cavity increases, pressure in buccal cavity drops, water moves into the buccal cavity, opercular valve shuts, opercular cavity expands, pressure in opercular cavity drops, floor of the buccal cavity moves up, pressure increases, water moves from buccal cavity over the gills, mouth closes, operculum closes, sides of the opercular cavity move inwards, pressure in the opercular cavity increases, water moved over the gills and out of the operculum, floor of buccal cavity moves up, water flowed out of the gills. 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