GCSE Bitesize: Nutrients [Les techniques CLIL] Réviser les liens Structure/ fonction de l'ADN Réviser les liens Structure/ fonction de l’ADN grâce aux techniques de CLIL. Partie 2 : question loop En classe de 1re S, en section européenne, on peut s’appuyer sur les techniques d’apprentissage des langues vivantes pour faire réviser des connaissances vues en français et acquérir le vocabulaire en anglais Prérequis : les élèves ont déjà travaillé la transcription, la traduction, la réplication de l’ADN en classe de 1re. Accueil des élèves Une vidéo Une première activité individuelle écrite est proposée pour entrer en douceur dans le monde de l’ADN et de l’anglais : Ecrire six mots que l’on imagine pouvoir relier à l’ADN Report six words connected with ‘DNA’. Puis une mise en commun se fait : un élève scribe vient au tableau et écrit sous la dictée des autres élèves toute une liste de mots an assistant is needed to write the words on the board. Activité centrale pour acquérir le vocabulaire, la syntaxe des phrases et la compréhension des mécanismes Instructions
Useful Links GCSE Bitesize: Pathogens: bacteria 25 Greatest Science Books of All Time Read an essay on the greatest science books by Nobel laureate Kary B. Mullis. 1. and 2. The Voyage of the Beagle (1845) and The Origin of Species (1859) by Charles Darwin [tie] One of the most delightful, witty, and beautifully written of all natural histories, The Voyage of the Beagle recounts the young Darwin's 1831 to 1836 trip to South America, the Galápagos Islands, Australia, and back again to England, a journey that transformed his understanding of biology and fed the development of his ideas about evolution. Yet Darwin's masterwork is, undeniably, The Origin of Species, in which he introduced his theory of evolution by natural selection. "The most important science book of all time. 3. Dramatic is an unlikely word for a book that devotes half its pages to deconstructions of ellipses, parabolas, and tangents. Principia marks the dawn of modern physics, beginning with the familiar three laws of motion ("To every action there is always opposed an equal reaction" is the third). 4.
Further Additional Science GCSE Bitesize: Receptors Enseigner en section européenne <encadre |texte=Les enseignants de SVT sont nombreux à utiliser et maitriser une langue étrangère, surtout l'anglais qui leur est indispensable dans leurs études scientifiques. De plus en plus d’élèves reçoivent un Enseignement de Matière Intégrant une Langue Etrangère (EMILE). Les professeurs de sciences sont invités à se lancer dans cette aventure et à collaborer avec leur collègues de langue vivante ... Un président anglophone peut apporter matière à échanger ... [-> L’écriture de cet article est une réponse à l’attente de certains collègues qui m’ont contactée et a pour vocation de promouvoir l’enseignement des sciences en section européenne pour une ouverture culturelle de nos élèves, une amélioration de leur maitrise des langues et des sciences et pour un épanouissement parallèle des enseignants de ces sections dans lesquelles la liberté pédagogique a un réel espace d’expression. 1.1- Section européenne ?
Additional Science White blood cells / response to infection Natural active immunity (natural acquired immunity) The surface of every cell is covered with molecules that give it a unique set of characteristics. These molecules are called antigens. Antigens are generally fragments of protein or carbohydrate molecules. There are millions of different antigens and each one has a unique shape that can be recognised by the white blood cells of your immune system. The antigens on the surface of pathogenic cells are different from those on the surface of your own cells. Primary response to infection If a pathogen enters your body, white blood cells of your immune system quickly recognise its foreign antigens. This initial response takes a few days before it is large enough to fight off the infection. White blood cells are found all over your body, but especially in your lymph glands. Different types of white blood cells respond in one of three different ways to the presence of a pathogen in the body:
Core Science Vaccination Developed by Edward Jenner in 1796, vaccination has made a major contribution to the fight against infectious diseases. It prepares your body's immune system to prevent infections from diseases such as measles, mumps, rubella, polio and tetanus. When you are vaccinated, you are given the pathogen that causes the disease, or even just some harmless fragments of it. Your immune system detects the foreign pathogens and mounts a primary immune response against them even though they will not cause an infection. With some vaccinations, the immune memory can reduce over several years. Each vaccination provides immunity against that particular disease and so a programme of vaccinations is given to provide immunity against a range of common infections. A small child receiving an oral polio vaccine in Ethiopia. Vaccine for all infections? It would be ideal if there was a vaccine for all infectious diseases. Vaccine risks and benefits? The benefits of vaccinations are enormous.
Past Papers This website uses cookies to improve your experience. Please either accept the cookies, or find out how to remove them. Accept <div class="js-msg"><p>This website works best with JavaScript switched on. <a href=" enable JavaScript</a></p></div> skip to content Show Menu you are here Past papers and mark schemes Free customisable exam materials for Science homework, topic tests, teaching and revision. Revise for exams with past papers and use the mark schemes to assess performance. Teachers can get past papers earlier, starting 10 days after the exam, from Secure Key Materials. Everyone can buy printed copies of past papers from our shop at low cost. PDFs open in a new window. Can’t find what you are looking for? Older question papers and mark schemes are removed from our public website after three years for copyright reasons (except for Maths and Science). Specimen papers Related exam materials Specification Amended due to Changes to GCSEs. Sitemap
Insulin and blood sugar control Controlling the blood sugar levels When you digest a meal, particularly one which is high in carbohydrate foods such as bread, pasta and cakes, the level of glucose in your blood rises. Glucose is important to the cells of the body, particularly the brain and the muscles, as an energy source for cellular respiration.