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Margarita Zhuravkova examines the following topics: methods of biology, levels of organization of living things, chemical composition of living organisms and cells, the most important biological substances - carbohydrates, lipids and fats, amino acids and proteins, nucleotides, DNA, RNA and ATP, Chargaff's rule, properties of the genetic code. Questions from the Unified State Exam in biology are considered on a number of topics. ???? Practice on this topic, analysis of Unified State Exam assignments in biology from Irina (including FIPI): • Molecular biology assignments from the E... ???? The entire theory for question #1 of the Unified State Exam in biology on VKontakte: https://vk.com/bio4you?w=wall-1980770... ???? If you want to get a hundred points on the Unified State Exam, join us: https://stepenin.ru/go/iO5sHyah ⚡️???? Secret page for the 2025 Unified State Exam in biology: https://stepenin.ru/courses/bio-ege ???? Unified State Exam options for solving on the website (many): https://stepenin.ru/tasks/bio-variants ???? VIDEO ANALYSIS of individual lines of assignments: https://stepenin.ru/tasks/bio-lines ???? Theory and practice to prepare for the 2025 Unified State Exam: • Biology for the 2025 Unified State Exam: all webinars and videos ???? Tasks for the Unified State Exam lines: • Tasks for the Unified State Exam lines ================================ Subscribe to our social networks: ???? VK biology: https://vk.com/bio4you ???? VK chemistry: https://vk.com/chem4you ✈️ Biological cart: https://t.me/bio4you ✈️ Chemistry cart: https://t.me/chem4you_ege Our chemistry channel: / @stepenin ================================= 00:00 Methods of biology 04:21 Levels of organization of living things 11:20 Methods of molecular biology: chromatography, PCR, electrophoresis, modeling, X-ray structural analysis 20:41 Elements in living organisms and cellular substances 26:26 Water, its properties and role in biology 40:15 Mineral salts in the cell and the body 43:31 Biopolymers. Carbohydrates (monosaccharides, oligosaccharides, polysaccharides) 49:03 Lipids (fats, phospholipids, lipoids) 53:14 Proteins, amino acids, peptides 01:06:20 Nucleic acids and nucleotides 01:12:26 ATP 01:13:52 Unified State Exam 2023 tasks in biology 01:16:05 Properties of the genetic code #biologyege #ege2025