In this laboratory work, students study the action of the enzyme catalase found in potato cells.
Laboratory work #1: «Study of the effect of enzyme immobilization on their activity» Read More »
During this laboratory work, students perform experiments demonstrating the characteristic properties of calcium and magnesium compounds. These experiments help identify the similarities in the chemical properties of Group IIA elements.
In this laboratory work, students investigate the properties of halogens and their compounds by observing characteristic chemical reactions of halide ions. These reactions are accompanied by color changes and precipitate formation, allowing students to visually confirm the presence of specific ions in solution.
Description: This work models the “mark-recapture” method, which is used in ecology to estimate animal population size in the wild. Students perform a series of “captures” with beads representing individuals of a population and, based on statistical calculations, determine its size.
Description: In this laboratory work, students will become familiar with the main organelles of the cell and their functions, learn to analyze microphotographs, identify the depicted structures, and compare their roles in cell activity. The practical part includes completing tasks in the worksheet, drawing a cell diagram, and modeling its structure using images of organelles.
Laboratory work #3: «Description of the main components of cells using microphotographs» Read More »
Description: In this work, students will prepare and compare different nutrient media (milk, potato, sugar-agar), inoculate microflora from a fermented dairy product, and then observe the growth of microbial colonies.
Description: In this laboratory work, students study modificational variability using the growth of mung bean seedlings under different conditions as an example. During the experiment, the length of the stems is measured, and a variation series and distribution curve are constructed. This helps identify the patterns of modificational variability and consolidate knowledge about its manifestations in living organisms. Long-term plan section Subsections of the Standard Curriculum Learning objectives Patterns of heredity and variability Modificational variability. Variation series of traits. 10.2.4.1 to study the patterns of modificational variability
Description: In this lesson, students model amino acid molecules using plasticine and toothpicks. They learn to assemble the general formula of amino acids, identify the presence of an asymmetric carbon atom, and distinguish amino acids based on their radical (R). The activity provides a visual understanding of amino acid structures and helps consolidate knowledge of amino acids.
Description: In this activity, students build models of simple aliphatic compounds (methane, ethane, propane, 1-chloropropane) using plasticine and toothpicks. Modeling helps visualize the structure of organic compounds, understand the principle of carbon tetravalency, and see the spatial arrangement of atoms in molecules. Section of the Long-Term Plan Subsections of the Standard Curriculum Learning objectives Introduction to organic chemistry Homologous series.IUPAC nomenclature of aliphatic compounds. 10.4.2.3 explain the formation of homologous series and the similarity of properties of their homologues; 10.4.2.4 draw structural formulas of compounds and name them according to IUPAC nomenclature.
Laboratory work #4: «Modeling Molecules of Organic Compounds» Read More »
Description: In this laboratory work, students will build a 3D model of a DNA molecule using simple, available materials. The model will help to visualize the structure of DNA and the principles of its organization.
Laboratory work #6: «Constructing a DNA Model» Read More »
