Inorganic environment refers to the non - living components in an ecosystem, such as water, air, soil, sunlight, temperature, etc. These elements play important roles in the survival, growth, and reproduction of organisms. For example, water is essential for various physiological processes in organisms; air provides oxygen for respiration; soil contains nutrients necessary for plant growth. Read more exciting novels for free
The following are some examples of cross-disciplinary teaching design in biology and environment: ** 1."Looking at the World with My Eyes" in kindergarten ** - ** Teaching purpose **: - [Science: Through focused observation, one can better understand the human world and the surrounding creatures.] - ** Art **: Exploring the basic structural elements of art, especially color. - ** In terms of social emotions **: Invigorate concepts and impressions, and invest in the creation of artistic works that express one's feelings. - ** Event **: - The child would use one-time and two-time coloring to make a miniature fan-shaped book. He would use index cards, crayons, and other materials to code and color the cards prepared in advance and sign them. Then, he would use a binding machine to combine one corner. - Children would go to the neighborhood around the kindergarten to observe the natural scenery and the colors of the buildings. They would use the fan-shaped book to determine the types of colors they saw, think about their favorite colors, or spend time observing something and discussing the reasons for their favorite colors. They would describe their gains and preferences during the trip, and finally use colors to express their feelings and draw things that left a deep impression on them. - ** Evaluation **: The final description of the child's work reflects their own perception and observation skills. ** 2. Living environment for primary school grades 1 - 5 ** - ** Teaching purpose **: - ** Science **: Understand the natural world through the living environment model, and understand the dependence of living things through in-depth observation. - ** Art **: - Create living environment models that represent different terrains (plateau, basin, plain, hills, mountains), collect and reuse materials including unique animals and plants in the area. - Understand and create terrain models that use the terrain as the base and put together animals and plants. - ** In terms of social emotions **: - It was a coordinated yet independent activity. - To develop fine motor skills. - Based on the step-by-step model education, it meets the needs of continuous improvement. - ** Event **: - The children simulated the living environment, including the terrain, climate, and unique animals and plants. He cut and pasted pictures from magazines on work paper and art paper to create a terrain background. He could use sculpting clay, natural materials, and recycled materials to make the surface, create lichen plants, and discuss plants in different living environments based on the understanding of unique animals and their predators at appropriate times. - ** Evaluation **: Write a diary every day, and perform a formative evaluation and a test required by the district/school. ** 3. VR teaching design,"The Relationship between Biology and the environment"(applicable to junior high schools)** - ** Teaching background analysis: - ** Course standard analysis **: This is the content of Concept 3.1.2 of the first-level theme of the 2022 new course standard, Biology and the environment. It points to the core accomplishment of "inquiry practice", allowing students to understand scientific ideas and research methods through scientific inquiry, and form the ability of scientific inquiry. - ** Analysis of teaching materials **: In traditional teaching, living experimental materials such as rat women are not easy to obtain and the class time is limited. It is difficult to carry out complete experimental exploration activities. With the help of the VR virtual simulation laboratory, fresh rat women could be provided, the experiment time could be shortened, and students could carry out inquiry experiments efficiently. They could visualize the distribution of rat women in the dark, obtain experimental facts and data, draw correct conclusions, and improve their inquiry practical ability and scientific thinking. - ** Introduction to VR Virtual Reality Course Resources **:"The Impact of Abiotic Elements on Living Things" VR Virtual Reality Course. The experimental equipment included live mice, soil, paper boxes, cardboard, and glass plates. Students could follow the instructions to carry out the experiment and observe the experimental data displayed in sync with the experimental results. They could also operate the experiment multiple times. - ** Teaching Design **: - ** Teaching objective **: - [Life Concept: Use examples to explain the effects of environmental factors on certain animals.] - ** Scientific Thinking **: Carefully observe and record, cooperate and communicate with the students in the group, and cultivate the scientific thinking of observation, analysis, induction, and conclusion. - ** Exploration Practice **: Experience the exploration process, learn to control experimental variables and design control experiments, and learn to analyze control experiments to find out variables and eliminate errors. - ** Social responsibility **: Form the feelings of caring for experimental animals, carefully observe and record, and cooperate and communicate with the group. - ** Teaching Difficulties **: - [Difficulties: Experience the general process of scientific inquiry, learn to control experimental variables and design controlled experiments.] - ** Key points **: Form the feelings of loving and caring for experimental animals, carefully observe and record, and cooperate and communicate with the group of students. - ** Teaching process **: Starting from the introduction of revision, ask questions about ecological factors and other related knowledge. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The organic matter was an important concept in biology. The organic matter generally contained carbon and could be burned. It was a kind of big molecular substance. Common organic matter included sugar, fat, protein, and acid. For example, in the knowledge related to green plants, through the experiment of green leaves producing organic matter under light, it was known that starch was a product of photosynthesis, and starch was an organic matter. At the cellular level, the fibers in the cell wall, the protein and fat in the cell membrane, and the DNA in the nucleus were all organic substances. These organic substances played an important role in the life activities of organisms and the construction of plants. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
In biology, there were several ways to create an oxygen free environment: - ** Physical Deoxidization **: - ** Boiling Method **: Remove oxygen by boiling. - ** Surface Sealing Method **: For example, using a lid to seal the container, and dripping water around the lid to surround the entire lid to create an oxygen free environment. - Vacuum pumping method: pumping out the air in the container, including oxygen, to create an oxygen free condition. - ** Non-oxygen Gas Substitution Method **: Use non-oxygen gas to replace air containing oxygen. - ** chemical deoxidization **: - ** Pyrogallic acid method **: Use the reaction between Pyrogallic acid and oxygen to remove oxygen. - [Special catalyst method: Remove oxygen using a specific catalyst.] - ** Reductant Method **: Use a reducing agent to react with oxygen, consuming oxygen to achieve an oxygen free environment. - Biological Deoxidization: Aerobic organisms, such as certain plants, germinating seeds, and airborne microorganisms, are placed in a closed container. They will consume the oxygen in the container and create an anoxide-free condition for the cultivation of the anoxide-free microorganisms. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The relevant knowledge points of organic matter in biology in Grade Eight were as follows: 1. ** Concept and Type ** - The term organic usually referred to carbon-containing compounds, but some simple carbon-containing compounds, such as carbon dioxide (CO), carbon dioxide (CO2), carbonates, and carbonides, were usually classified as inanimate because their properties were similar to those of inanimate substances. The common organic substances in the body were sugar, fat, protein, and nuclei. 2. ** Sugar-based ** - ** composition and classification **: Carboids are composed of carbon, hydrogen, and oxygen. They are generally divided into monosomes, disomes, and glycans. Monosomalose was a sugar that could no longer be digested, such as glucose (C H Chi O), which was the main energy material needed for cell life activities. Frucose was also a simple sugar, a simple sugar unique to plant cells. Disaconids are formed by the condensation of two molecules of simple sugar, such as cane sugar (composed of glucose and glucose), glucose (composed of two molecules of glucose), and glucose (composed of glucose and glucose). Polyose was a kind of big molecular sugar formed by the dehydration condensation of many simple sugar molecules. The starch in plants was an important kind of glycan, which was the material used to store energy in plant cells. Cellulose was also a glycan, which was the main component of plant cell wall and played a supporting and protective role in plant cells. Glycogen in animal cells was the glycan used to store energy in animal cells, which was mainly distributed in the liver and muscle. - [Identification method: When starch meets with iodination, it turns blue. Iodine solution can be used to identify the existence of starch.] When reducing sugar (such as glucose, etc.) and Fehling's reagent were heated in a water bath, they would produce a brick-red deposit, which could be used for the identification of reducing sugar. 3. ** Fat * - Fatty is composed of three elements: carbon, hydrogen, and oxygen. The content of hydrogen in its molecules is relatively high, and the content of oxygen is relatively low. Fat was a good energy storage material in cells. It could be broken down to provide energy when needed for life activities. Fat also had the functions of heat insulation, heat preservation, buffer, and pressure reduction. For example, the fat under the skin of animals could serve as heat preservation, and the fat around the internal organs could serve as buffer and pressure reduction to protect the internal organs. - ** Identification method **: Fat can be dyed orange by the dye solution of Sultan III and red by the dye solution of Sultan IV. 4. ** protein ** - ** Constitution and structure **: The basic building block of a protein is an aa, and there are about 21 aa that make up a protein. The general structural formula of an amine acid was that a central carbon atom was connected to an amine group (-NH2), a starch group (-COOx), a hydrogen atom, and a side chain group (R group). The R groups of different kinds of acids were different. Many of the protein molecules were dehydrated and condensed to form a protein chain. One or more of the protein chains were coiled and folded to form a protein with a certain spatial structure. - ** Function Diversity **: The protein is the main bearer of life activities and has many functions. For example, some protein is an important material that forms the structure of cells and organisms, such as feathers, hair, spider silk, etc., which are mainly composed of protein; some protein has the function of catalyze, such as the protein of the protein; some protein has the function of transport, such as the protein of the protein of the protein of - ** Identification method **: The protein will react with the biuret reagent and produce a purple reaction. 5. ** Nucleic acid ** - Nucleic acid is a substance that carries genetic information in cells. It plays an extremely important role in the inheritance, mutation, and protein synthesis of organisms. Nucleic acid was divided into two types: DNA and DNA. DNA was mainly found in the nucleus, and there was also a small amount of DNA in the mitochondria and plastids. DNA was a big molecular made up of DNA, while DNA was a big molecular made up of Ribonetides. Each Ribonetides was made up of a nitrogen base, a pentagon sugar, and a phosphorous acid. - ** Identification method **: The two stains, methylethyl-green and pyrone-red, have different affinities for DNA and DNA. methylethyl-green makes DNA appear green, and pyrone-red makes DNA appear red. Techniques to learn these knowledge points: 1. ** Construct Knowledge Network **: Construct a complete knowledge network of the types, composition, structure, function, and identification methods of organic matter. This will help to systematically understand and remember. 2. ** Comparisons **: Comparing different types of organic substances, such as the similarities and differences between sugar, fat, and protein in terms of composition elements and functions, and the differences between DNA and DNA in terms of composition, structure, and distribution. 3. ** Practice **: Link the knowledge of organic matter with daily life, such as the relationship between nutrients in food and organic matter, the relationship between human health and organic matter such as protein and fat, etc. This can deepen the understanding and memory of knowledge. 4. [Experiment Understanding]: Understand the nature and identification methods of organic substances through experiments, such as personally conducting experiments on reducing sugar, fat, and protein. Grasp relevant knowledge during the experiment. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Bio-organic matter was a biochemical reaction in which large organic molecules were degraded into small organic molecules outside the cell before being utilized by microorganisms. For example, Cellulose is digested by cellases into cellobiose and glucose, starch is decomposed by amylases into glucose and glucose, and protein is digested by proteases into oligopeptides and ammo acid. These small molecules could be dissolved in water and used by bacteria through cell membranes. The rate of the reaction was usually slow. Many factors, such as temperature, the composition of organic matter, and the concentration of the product, could affect the rate and degree of the reaction. In the sewage treatment process, in the stage of fermentation, the microorganisms release free extra-cellular or immobilized membranes attached to the outer wall of the cell to complete the biocatalytic reaction. The microorganisms will decompose the organic matter into dissolved organic matter, and convert the difficult-to-biodegrade big molecular matter into easily biodegraded small molecular matter, thereby improving the bio-biochemistry of the organic waste water and laying a good foundation for subsequent treatment. In the field of biology, partially dehydrated milk powder was 100% dehydrated from the serum protein to form small molecules, which were more conducive to digestion and absorption. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The English word for " organic " was " organic " while the English word for " organic " was " organic." <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction conditions in organic chemistry referred to the external factors required for the occurrence of organic chemical reactions. These factors had an important impact on the occurrence of reactions, reaction rates, reaction products, and so on. The following are the common reaction conditions and their significance: ** 1. In terms of temperature ** - The reaction was usually slower at lower temperatures and faster at higher temperatures. However, too high a temperature could lead to more side reactions, so it was necessary to choose the right temperature to ensure that the reaction would proceed as expected. For example, different organic reactions had better reaction results at a specific temperature. For example, the synthesis of ethene from alcohol occurred at a specific temperature of 170 ° C under concentrated sulfuric acid. ** 2. Pressure ** - When the pressure was high, the reaction was usually faster. For example, under high pressure, the substitution reaction of the aromatic compounds and the dehydration reaction of the alcohol could be carried out. ** 3. Solvent-related ** - Solvents played an important role in organic reactions, as they could affect the reaction rate and yield. Commonly used liquids include water, alcohol, ether, benz, methylethlene, chlor, carbon dioxide, etc. Different reactions may require different reagents, and the properties of the reagents would affect the dissolution of the reagents and the activation energy of the reaction. ** 4. In terms of catalyst ** - The catalyst could reduce the activation energy of the reaction, thus accelerating the reaction rate. - Acid and base catalyst: For example, concentrated sulfuric acid played the role of a catalyst in the fermentation reaction. - Metal catalyst: For example, PdCl2 and CuCl2 used in the synthesis of ethene, copper or silver used in the synthesis of ethene, and manganous acetate-acid used in the synthesis of ethene. - Some organic reactions were also carried out by the use of catalyst. ** 5. Illumination ** - Some reactions of organic molecules needed to be carried out under light, such as the substitution reaction on the aromatic ring and the epoxidizing reaction of alkene. ** 6. Heat up ** - Heat was one of the most common conditions for organic reactions. It could speed up the reaction rate. Different reactions may require different heating methods, such as return flow, oil bath, sand bath, and so on. For example, under the reaction conditions of "concentrated sulfuric acid," it involved elimination reactions (such as the production of ethene from alcohol), esterfication reactions (the reaction of a carbolic acid and an alcohol), condensation reactions, and so on. The "" here represented heating. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
A novel environment typically refers to a new, unfamiliar, or unique setting or context that is different from what one is accustomed to.
Reaction environment refers to the sum of various external conditions that affect the reaction in chemical reactions, biological reactions, or other related processes. For example, in an electro-catalyze reaction, the reaction environment may include factors such as the nature of the solute (such as acid, basicity, etc.), the characteristics of the battery, the mixed state in the reaction vessel, and so on. In the acidic electro-catalyze carbon dioxide reduction reaction (CO2RV), the acidic medium was used as the reaction environment to improve the reaction efficiency and stability by suppressing the formation of carbonates and their cross-linking into the anolyte. The reaction environment could be adjusted through electrocatalyst design, battery modification, and solute engineering to promote the performance of CO2RV. In the solid state reaction, the fluid reactor could provide a dynamic reaction environment. In the study of the adjustment of the absorption behavior, the local reaction environment on the surface of the catalyst would affect the absorption behavior of the reagents and the reaction intermediate, and thus affect the reaction results. For the reaction of the catalyst, the reaction environment included the acid and base environment and the oxido-reduction environment. These factors would affect the activity of the catalyst and determine the reaction and oxido-reduction reaction of the catalyst in the acid and base environment. In the chemical industry, reaction vessels provided a safe and controlled environment for chemical reactions, including providing an effective mixing environment (using impellers or baffles to ensure a uniform reaction mixture), precise control of reaction parameters (such as temperature, pressure, and other variables), and collection and analysis of reaction data. These were all part of the reaction environment. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The tuition fee for the engineering experimental class (environment and biology)(including majors: environmental engineering and biological engineering) was 6500 yuan. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>