http://dspace.univ-setif.dz:8888/jspui/handle/123456789/1411 Tue, 05 May 2026 20:25:29 GMT 2026-05-05T20:25:29Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/6661 Titre: Biochemistry A Course Designed to 2 Year Basic studies Students (LMD) Auteur(s): FERDJIOUI, Siham Résumé: Biochemistry, study of the chemical substances and processes that occur in plants, animals, and microorganisms and of the changes they undergo during development and life. It deals with the chemistry of life, and as such it draws on the techniques of analytical, organic, and physical chemistry, as well as those of physiologists concerned with the molecular basis of vital processes. All chemical changes within the organism—either the degradation of substances, generally to gain necessary energy, or the buildup of complex molecules necessary for life processes—are collectively called metabolism. These chemical changes depend on the action of organic catalysts known as enzymes, and enzymes, in turn, depend for their existence on the genetic apparatus of the cell. It is not surprising, therefore, that biochemistry enters into the investigation of chemical changes in disease, drug action, and other aspects of medicine, as well as in nutrition, genetics, and agriculture. The term biochemistry is synonymous with two somewhat older terms: physiological chemistry and biological chemistry. Those aspects of biochemistry that deal with the chemistry and function of very large molecules (e.g., proteins and nucleic acids) are often grouped under the term molecular biology. Biochemistry has been known under that term since about 1900. Its origins, however, can be traced much further back; its early history is part of the early history of both physiology and chemistry. Wed, 01 Jan 2025 00:00:00 GMT http://dspace.univ-setif.dz:8888/jspui/handle/123456789/6661 2025-01-01T00:00:00Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/6581 Titre: BIOCHEMISTRY Course intended for second-year Common Core students Auteur(s): MADOUI, Soraya Résumé: Biochemistry is the science that studies the structure and properties of the molecules that make up living organisms (such as carbohydrates, proteins, and lipids). It also examines the transfor- mation reactions (metabolism) of these molecules, including degradation reactions (catabolism) and biosynthesis reactions (anabolism). This structural biochemistry course is intended for second-year biology students. It aims to help them understand the structure and physicochemical properties of the three main components of living cells: proteins, carbohydrates, and lipids. All life sciences require knowledge of biochemistry. The biochemistry of nucleic acids lies at the heart of genetics; conversely, genetic approaches have shed light on many areas of biochemistry. The field of physiology, which studies bodily functions, overlaps almost completely with that of biochemistry. Immunology relies heavily on biochemical techniques, and biochemists often em- ploy immunological approaches. Pharmacology and pharmaceutical sciences are founded on solid biochemical and physiological principles; for instance, most drugs are metabolized through enzyme-catalyzed reactions. Poisons act on biochemical reactions or pathways, which are the main focus of toxicology. Biochemical approaches are increasingly used to investigate the fun- damental aspects of pathology (the study of diseases), such as inflammation, cellular damage, and cancer. Many researchers in microbiology, animal biology, and plant biology rely almost exclusively on biochemical methods. These interconnections are not surprising, since life as we know it depends on biochemical reac- tions and transformations. Indeed, the traditional boundaries between the life sciences are dis- solving as biochemistry increasingly becomes their common language. Wed, 01 Jan 2025 00:00:00 GMT http://dspace.univ-setif.dz:8888/jspui/handle/123456789/6581 2025-01-01T00:00:00Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/6566 Titre: Pratical work in general and organic chemistry for L1 SNV Auteur(s): OUKSEL, Louiza Résumé: Practical work (PW), commonly referred to as laboratory sessions or practicals, constitutes a pedagogical approach centered on experiential learning. It involves the performance of experiments designed to verify, illustrate, and complement the knowledge acquiredin theoretical courses. Such activities are particularly relevant to the experimental sciences. In contrast to lectures or tutorials, which are conducted primarily through oral or written means, practical sessions require the use of specialized equipment (e.g., laboratory glassware, chemical reagents, or computers). The instructional space dedicated to these activities, typically designed as a laboratory, is conventionally designated as a practical work laboratory or laboratory classroom. Practical work represents both an application and an assessment of students’ mastery of the scientific method, which entails formulating hypotheses, designing experimental protocols, conducting experiments, analyzing results, and refining the initial assumptions. Moreover, these sessions serve to demonstrate the techniques and processes implemented in applied workshops, while also allowing pedagogical materials to be adapted in accordance with the methods and technologies under investigation. Wed, 01 Jan 2025 00:00:00 GMT http://dspace.univ-setif.dz:8888/jspui/handle/123456789/6566 2025-01-01T00:00:00Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/6554 Titre: COURS DE CHIMIE ANALYTIQUE EN SOLUTION : Socle commun L1 : Sciences de la Nature et de la Vi Auteur(s): OUKSEL, Louiza Résumé: C’est un immense plaisir que je mets à la disposition des étudiants de première année S.N.V, ce modeste polycopié qui représente un cours de chimie analytique en solution, qui est le résultat de plusieurs années d’expérience. La chimie est la science qui étudie la composition, la structure et les propriétés de la matière, ainsi que les transformations que celle-ci peut subir. Elle est au cœur de la compréhension de très nombreux aspects de la nature et de la vie. La taille des composés étudiés en chimie varie de la réaction entre de simples atomes jusqu'à des édifices moléculaires de plusieurs dizaines de milliers d'atomes (ADN, protéines, cristaux…). L'étude du monde à l'échelle moléculaire permet de mieux comprendre le monde à l'échelle de l'homme. En effet, la chimie fait partie de la vie de tous les jours. Les plantes fabriquent grâce à la lumière les substances nutritives dont elles ont besoin en captant les gaz dissous dans l'air (de l'azote en majorité) et puisant dans le sol de l'eau et des sels minéraux. Elles font de la chimie. Lorsque l'on chauffe un aliment, quand on cuit un œuf, des pâtes, ... Nous faisons également de la chimie. Tous les produits de beauté, parfums, crèmes ont une origine chimique. Ils sont créés ou synthétisés à partir des atomes et des molécules que l'on fait réagir entre eux. Soit en imitant et reproduisant ce qui se passe dans la nature, soit en créant de nouveaux composés. Sun, 01 Jan 2023 00:00:00 GMT http://dspace.univ-setif.dz:8888/jspui/handle/123456789/6554 2023-01-01T00:00:00Z