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 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 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 »
Description: In this laboratory work, students investigate the properties of various types of plastics commonly found in everyday life. The experiment includes observing their behavior during heating and burning, determining their density using water and salt solution tests, and checking their solubility in an organic solvent (acetone). The work allows students to see in practice how the structure of a polymer influences its properties and applications. Section of the Long-Term Plan Subsections of the Standard Curriculum Learning objectives Synthetic polymers High-molecular compounds Polymerization reactions 11.4.2.10 distinguish between the concepts of “monomer,” “repeating unit,” “oligomer,” “polymer,” “degree of polymerization.”11.4.2.11 compose equations of polymerization reactions and study the properties of polymers.
Laboratory work #7: «Polymers and Their Properties» Read More »
Description: In this experiment, students will study some properties of amino acids using glycine as an example. Section of Long-Term Plan Subsections of the Standard Curriculum Learning objectives Amines and amino acids Physical and chemical properties of amino acids. 11.5.1.4 know trivial and systematic names of amino acids 11.5.1.5 describe the composition and structure of amino acid molecules 11.5.1.6 explain the biological role of essential and non-essential amino acids 11.5.1.7 explain the ability of amino acids to form zwitterions
Laboratory work #5: «Properties of Amino Acids» Read More »
Description: In this lab, students will perform qualitative tests to detect proteins in various biological substances such as milk and egg white.
Laboratory work #2: «Determining the Protein Content in Biological Samples» Read More »
Description: In this lab activity, students investigate the chemical properties of ammonia through its interaction with copper and iron salts, as well as with a pH indicator. The experiment demonstrates the basic nature of ammonia, its volatility, and its effect on the acidity of the environment.
Laboratory work #3: «Chemical Properties of Ammonia» Read More »
Description: In this lab activity, students will investigate the composition of photosynthetic pigments in the leaves of various plants using the method of paper chromatography. Rf values for each pigment will also be calculated, allowing to establish the link between chloroplast structure and its function.
