Humanities Education Version Biology elective 1 Electronic Catalog
The PEP High School Biology elective Index (Complete Version) contained six special topics and 16 small topics: Thesis 1: The application of traditional fermentation technology: Thesis 1: The production of fruit wine and vinegar; Thesis 2: The production of fermented bean curd; Thesis 3: The production of pickled vegetables and the determination of the content of nitrates; Task 2: Cultivation and application of microorganisms: Task 1: Cultivation of microorganisms in the laboratory; Task 2: Separation and counting of urea-decomposing bacteria in soil; Task 3: Separation of microorganisms that decompose Cellulose-decomposing bacteria; Thesis 3: Plant tissue culture technology: Thesis 1: Chrysanthemum tissue culture, Thesis 2: Rose anther culture; Thesis 4: Research and application of pectinase: Thesis 1: The role of pectinase in the production of fruit juice; Thesis 2: Exploring the washing effect of washing powder with pectinase; Thesis 3: Immobilization of yeast cells; Thesis 5: DNA and protein technology: Thesis 1: DNA extraction and identification; Thesis 2: Polymerase chain reaction amplification of DNA fragments; Thesis 3: Hemoglobin-extraction and separation; Task 6: extraction of plant active ingredients: Task 1: extraction of plant aromatic oil, Task 2: extraction of beta-carotine. Read more exciting novels for free
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People's Education Version Biology elective test questions
The common types of test questions included multiple choice questions, short answer questions, etc. They covered the application of traditional fermentation technology, the cultivation and application of microorganisms, plant tissue culture technology, the research and application of microorganisms, DNA and protein technology, the extraction of plant active ingredients, and other topics. For example, in the application of traditional fermentation technology, the control of conditions in the fermentation process, the types of microorganisms and their functions, etc. might be examined. In the topic of the cultivation and application of microorganisms, the type of medium, the method of incubation of microorganisms, and other knowledge points might be examined. These test questions were designed to test the students 'understanding, mastery, and application of the content of the biology elective course. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Biology elective course 2: Knowledge Points
Biology elective second year of high school chapter 1 knowledge points: - Research and application of the reagent: - Pectinase: It breaks down pectins and dissects the cell wall and intercellular layer of plants, which helps to increase the juice yield of fruits and make the juice clear. Pectinase was not an type of an ester. It included polygallouronases, pectinases, pectinases, and pectinesterases. - The activity of the reagent could be expressed by the reduction of the reagent or the increase of the product in a unit of time and volume. - Control of plant pests and animal diseases: - Control policy: prevention first, comprehensive control. - Comprehensive control methods for crop pests and diseases: - Investigation of pests and diseases: According to the purpose, requirements and targets of the investigation, it can be divided into basic situation investigation, fixed-point system investigation and pest control effect investigation. The investigation was generally carried out in the form of a sample. The sample methods included chessboard, diagonal, straight, Z, and so on. There were concepts such as disease incidence rate (preliminary understanding of the harm situation), insect population reduction rate (understanding the effect after prevention and treatment), etc. The prediction of plant pests and diseases was based on the analysis and judgment of the data obtained from observation and investigation. It calculated the occurrence period, occurrence quantity, and damage degree of the pests and diseases, and issued early warnings in time for prevention and control. - Plant quarantine: The purpose is to prevent the spread of dangerous pests and weeds. The quarantine targets were seeds, seedlings, and agricultural products, including international quarantine and domestic quarantine. - Agricultural control: Take measures such as the selection of resistant varieties (such as insect-resistant tobacco), the formulation of reasonable farming systems (such as reducing the amount of pesticide used), and the establishment of scientific fertilizer and water management to directly or indirectly eliminate or suppress the occurrence and harm of diseases, insects, and weeds. Biology elective second year of high school, knowledge points: - Cell cycle and mitosis: The cell is the basic unit of an organism, and its normal growth and development requires a series of life cycles. The cell cycle referred to the entire process of cells starting from one mitosis to the next mitosis. It was mainly divided into four stages. - G1 phase (growth phase): During this period, cells grow and synthesize the required protein and organelle. - S phase (DNA replication phase): During this period, cells replicate the DNA in their genomes, ensuring that each daughter cell has complete genetic information. - G2 phase (prophase): During this period, cells grow further and are ready to enter mitosis. - M stage (mitosis stage): During this period, cells undergo mitosis, including the formation of the Spindle, nuclear division, and cell division. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Biology Shanghai Science and Technology Press Electronic Version
You can log in to your account through the teaching materials section of the National Primary and Secondary School Wisdom Education Platform website (website: <anno data-annotation-id ="00000000 - 4140 - 4444-a888 - 9999 - 999999999999"></anno></anno>) and follow the following steps to view the electronic version of the Shanghai Science and Technology edition of high school biology textbooks: 1. Choose "High School" from the left navigation bar;2. Choose Biology as the subject;3. He chose the "Shanghai Science and Technology Version". At this moment, the corresponding textbook would appear. He could click on it to view it. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Ranking of Higher Level Biology, Human Education Version Knowledge
The following is a summary of some of the knowledge points of the People's Education Version: ** 1. Water Absorption and Dewatering of the Cell ** 1. ** Principle **: There are two conditions for the infiltration to occur. One is that there is a semi-transparent membrane, and the other is that the solution on both sides of the membrane has a concentration difference. 2. ** Water Absorption and Dewatering of Animal Cell (Take Red Blood Cell as an example)** - The red blood cell membrane was equivalent to a semi-transparent membrane. When the concentration of the external solution was less than the concentration of the plasma, the cell absorbed water; when the concentration of the external solution was greater than the concentration of the plasma, the cell lost water; when the concentration of the external solution was equal to the concentration of the plasma, the water entered and exited the cell. 3. ** Water Absorption and Dewatering of Plant Cell ** - In mature plant cells, the protoplasts (cell membrane + tonoplasts + the plasma between the two) were equivalent to a semi-transparent membrane. The condition for plasmosis to occur in mature plant cells was that the concentration of the external solution was greater than the concentration of the cell fluid, and the condition for plasmosis to occur was that the concentration of the external solution was less than the concentration of the cell fluid. ** 2. Other examples of material transport across membranes ** 1. The characteristics of a biological membrane: cell membranes and other biological membranes allow water molecules to pass through freely. Some ions and small molecules can also pass through, while other ions, small molecules, and large molecules cannot pass through. Therefore, they are all permissive membranes. The similarity between a semi-transparent membrane and a permissive membrane was that some substances could pass through while others could not. The difference was that a permissive membrane must be a semi-transparent membrane, but a semi-transparent membrane might not be a permissive membrane. ** 3. Knowledge about the existence of mineral salt in the body ** 1. ** distribution **: The distribution of mineral salt in the body is extremely uneven. For example, most of the calcium and phosphorus are in the hard tissues such as bones and teeth, iron is concentrated in the red blood cells, and iodines are concentrated in the thyreoid. 2. ** The importance to tissue and cell structure ** - Hard tissues such as bones and teeth are mostly composed of calcium, phosphorus, and calcium, while soft tissues contain more potassium. The mineral salt ions in body fluids regulated the cell membrane's penetrability, controlled water content, maintained normal osmonic pressure and acid base balance, helped transport common elements throughout the body, and participated in nerve activity and muscle contraction. Some of them were components of the prosthetic group, hormones, vitamins, protein, and DNA that constituted the protein, or they could be used as an initiator of many kinds of protein systems. They were involved in many important physiological functions, such as maintaining the activity of the heart and brain, and helping the formation of antibiotics. 3. ** Metabolization and replenishment ** - Due to metabolism, a certain amount of mineral salt was discharged from the body through various channels every day and needed to be supplemented through diet. Its metabolism can be determined by analyzing the concentration in blood, hair, urine, or tissues. In the appropriate concentration range, it was beneficial to health. Deficiency or excess could cause diseases. Deficiency of calcium, iron, and iodines was more common in China. Selenium, fluorin, etc. were different with the biochemical environment. There were both deficiency and excess diseases. ** 4. Cell structure and division ** 1. ** Chromatin, Chromosome, Sister Chromatids ** - Chromatin: A substance in the nucleus that is easily dyed dark by basic dye. It is composed of DNA and protein. During the interphase of cell division, it is a slender silk that interwove into a net. - During cell division, the Chromatin in the nucleus is highly spiraled, shortened and thickened, and can be seen under an optical microscope. - Sister Chromatids: Chromatids self-replicate during mitosis (including Meiosis), forming two identical chromatids connected by a kinetochore. If the kinetochore splits, they each become a single Chromatin. Each sister Chromatids contained one DNA, and each DNA generally contained two deoxy chains. 2. ** Concepts related to mitosis ** - Mitosis: The main way for most plants and animals to increase the number of body cells. The parent cell's embryos duplicate once and the cell splits once. - Cell cycle: A cell that continuously splits, starting from the completion of one division to the completion of the next division, including the interphase and division phase. The interphase was from the end of one cell division to the end of the next cell division. The mitosis period began after the end of the interphase, and the interphase was longer than the mitosis period. - Spindle: A structure that appears in the middle of mitosis and is closely related to the movement of the nuclei. - Equator plate: In the middle stage of mitosis, the kinetochore of the sperm is precisely arranged on the equator of the Spindle. - Amitosis: There are no changes in the Spindle and Chromosome during mitosis, such as the red blood cells of frogs. At the same time, the number of nuclei was equal to the number of kinetochore. The calculation of the number of DNA was divided into two situations. When the nucleus did not contain sister chromatids, a nucleus only contained one DNA. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Shanghai Education Version Third Grade English Electronic Version Volume 2
If you want to view the third grade English e-textbook textbook (electronic version), you can open the teaching materials section of the National Primary and Secondary School Wisdom Education Platform website (website: 1. On the left side of the navigation bar, he chose "Primary School". 2. The subject was English. 3. The version was "Shanghai Education Version"; 4. When he chose "Year 3," the corresponding textbook would appear. He could click on it to view it. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Jincheng Datong Education Biology
The following was about the education and biology situation in Jincheng and Datong: ** 1. Education ** 1. ** School Exchange and Learning ** - The leaders of Datong City Hunyuan County, the leaders of the Education Bureau, and the representatives of the outstanding principals visited Jincheng No. 3 High School to study the curriculum reform. This showed that the results of the curriculum reform of Jincheng No. 3 High School were paid attention to, and there was positive interaction between the two places in the exchange of experience in education reform. 2. ** Leave arrangement ** - Datong City's 2022 summer vacation was scheduled for July 8th, and the school officially started on August 28th. The 2022 - 2023 academic year's winter vacation was tentatively scheduled for January 12th, 2023. Jincheng City would be on summer break from July 5th to August 31st, 2022. School would officially start on September 1st. This reflected the difference in the arrangement of the primary and secondary school term in the two places. 3. ** School teaching and research work ** - In Datong, Datong City Experimental Middle School actively carried out high school teaching and research quality improvement work meetings, emphasizing the improvement of education and teaching quality, including the principal's "push door class","collective research class", and the teacher studio's regular teaching and research activities. This reflected Datong's active exploration in high school education and teaching management. - The Shanxi Province Basic Education Digital Transformation Promotion Meeting was held in Datong on June 17,2024. This showed that Datong's active participation in the development of basic education was conducive to promoting the transformation and development of Datong's education in terms of digitizing. 4. ** University Construction ** - The Datong Campus Agreement of Shanxi University was officially signed. This would enable the students of Datong to enjoy the "double first-class" high-quality higher education at their doorstep, which was of positive significance to the development of Datong's higher education. ** 2. Biology ** 1. ** Biology Teacher's Salaries (Datong)** - In terms of salary for Datong biology teachers with 3 - 5 years of experience, the average salary was 5.3K. Compared to the average salary of 6.8K for Datong biology teachers with 3 - 5 years of experience, the average salary was 23.3% lower. 100% of the positions were 4.5 - 6K/month, and the annual salary was 5,000 - 7,000 (data credibility is low, for reference only). 2. ** Education on Biological Diversity-Datong ** - Datong City's Bureau of Zoology and the environment held the "International Biological Diversity-Day" event on May 20th in Wenhui Primary School in Urban area. Through the event, students 'environmental awareness of cherishing animal and plant resources was raised. The staff explained the relevant knowledge of biological diversity-related knowledge to the students, such as the three levels of biological diversity-related content, the current situation, the significance of conservation, etc. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The difference and connection between life education and biology education
Life education aimed to let people know, respect, and cherish life, including understanding the origin, development, and meaning of life, establishing a correct view of life, learning to actively survive, live a healthy life, and develop independently, understanding the relationship between life and God, and obtaining harmony between body and soul through care, recording, gratitude, and sharing of life. Its content was widely involved in ethics, philosophy, psychology, and many other aspects. It was a comprehensive educational concept about the value and meaning of life. Biology education was more focused on imparting biological science knowledge, such as biological structure, function, evolution, ecology, and other scientific knowledge, as well as related experimental skills, scientific inquiry methods, etc. It mainly studied and taught biology from the perspective of natural science. The connection between the two was that biological education could provide part of the scientific knowledge foundation for life education. For example, biological science knowledge such as the origin and development of life could help people understand life from a scientific perspective, thus deepening their understanding of the relevant content of life education. Life education could provide value guidance for biology education, so that biology education was not only limited to knowledge imparting, but also guided students to respect life and cherish life, so as to have a deeper understanding of life phenomena in biology education. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
A catalog of books on practical electronic gadgets
Table of contents: 1. Electronic Thermometer 2 Mini speakers 3 wireless microphone 4 Smart Glasses 5 Electronic photo album Mini calculator Electronic dictionary 8 Smart Watch Electronic Blood Pressure Monitor Electronic Thermometer Mini Routers Smart Home Controllers Video Game Controllers Electronic Book Reader Smart Door Lock Electronic Waste Disposers Electronic Calculating Machine Intelligent Lighting Controller Electronic Blood Pressure Monitor Mini Routers The above is a list of selected practical electronic products. I hope you can help.
Inspirational education books online reading full text electronic version
" New York 1988 " was an urban entertainment novel written by a sweet demon. The new book," King of Entertainment Flow," had been released. The male protagonist was 16 years old and had many playboys. He was 186cm tall and weighed 75kg. The female protagonist, Elizabeth, was smart and charming. The female supporting actors had their own characteristics. " Qin Shi Ming Yue's Infinite Punch Card ", a doujinshi work derived from a light novel. Han Fei wanted to be a plagiarist, but the system that had been paralyzed for ten years responded. The book list had a rating of 60, which was the standard of Long Aotian. However, the author was Old Qin Shi, and he had completed his work. His new book had also been released. " Virtual Intelligent Network " was a novel about urban life written by Ordinary Night Rain. It was a story about an otaku who had a breakthrough in his studies and developed his brain domain to enter the network. The original title had been changed. " The Lord of the Fortune Dynasty " was a Xianxia novel written by Maple Snow. It was a novel that built the fortune of the dynasty and gathered the fortune of the heavens to prove longevity. The book list recommended it. " Future Martial Arts Cultivation Network ", a novel by Deep Sea Bixi. The main character can cultivate in the future martial arts network. The new book has been uploaded. Although the plot and writing were good, the author's slow updates were a bit slow, and his recommendation index was three stars. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Biology elective, a must-memorize knowledge point encyclopedia, PEP edition
The following are some of the must-memorize knowledge points for the Biology elective 1 of the People's Education Version: 1. **DNA related knowledge ** - ** Dissolution **: DNA and protein have different dissolutes in different concentration of NaCl-based solutions. This feature can be used to separate DNA from impurities. DNA is not dissolved in alcohol solution, but some protein is dissolved in alcohol, which can further separate DNA and protein. - ** Resistance to acids, high temperatures, and deterrents **: The protein has no effect on DNA. Most protein cannot withstand high temperatures of 60 - 80°C, while DNA will only denature above 80°C. The deterrents can disintegrate the cell membrane, but it does not affect DNA. - ** Identification **: Under the conditions of boiling water bath, DNA will be dyed blue when it comes into contact with diamines. diamines can be used as a reagent for DNA identification. - **DNA extraction and identification of experimental materials **: Biological materials containing DNA are acceptable, but biological tissues with relatively high DNA content are better. - ** Disrupting cells to obtain the Dna-containing fluid (chicken blood cells and plant cells as examples)** - Chicken blood cells: Distilled water was added to the chicken blood cell fluid, stirred with a glass rod, and filtered to obtain the filtered fluid. Distilled water was a hypotonic liquid for chicken blood cells. A large amount of water entered the blood cells and caused them to burst. Stirring accelerated the rupture and released DNA. - Plant cells (taking onions as an example): Add the washing agent and salt to the chopped onions, stir and grind them thoroughly, and then filter them to obtain the grinding liquid. The washing agent dissolved the cell membrane, which was conducive to the release of DNA, while salt (NaCl2) was conducive to the dissolution of DNA. If the grinding was insufficient, the DNA in the nucleus would not be completely released, which would affect the results of the experiment. The filtered liquid of this step may contain impurities such as protein, glycan, and R A. - ** Removing impurities in the filtered solution **: There are three methods: one is to use the different dissolutes of DNA in different concentration of NaCl-solution; the second is to use a protein to decompose the protein but not the DNA; the third is to use the different denature temperatures of the protein and DNA. - **DNA extraction and identification procedures (onion as an example)** - Weigh 30 grams of chopped onions, add a small amount of Quartz sand to aid grinding, pour 10mL of 2-mole/L solution of NaCl3 and grind them thoroughly (onions can be treated first to reduce irritation). The purpose of grinding is to break the cells and let the DNA dissolve in the NaCl3 solution. There is no need to grind them into a porridge paste, and you can't use a whisk. - After grinding, it was filtered with a funnel and gauze to obtain the filtered liquid. - Add 20ml of 95% alcohol solution to the filtered solution (pour it slowly along the beaker wall without shaking or stirring). The upper layer of the solution will separate out a white, fibre-like viscous substance (DNA), which can be gently rolled up with a glass rod. 2. ** Traditional fermentation technology ** - ** Fruit wine making ** - ** Principle **: Yeast's anoxide-free breathing, the reaction formula is C6H12O6 → 2C2H50H +2CO2 + energy. - ** Source **: Wild yeast attached to grape skin or artificially cultivated yeast. - ** Condition **: 18 - 25 ° C, sealed, venting (CO2) at intervals. - ** Detection **: Under acidic conditions, the reaction between the alcohol and the potassium bichromate is grayish-green. - ** Fruit vinegar production ** - [Principle: Aerobic Breathing of Acetic Acid bacteria.] When O2 and sugar source were sufficient, sugar would be decomposed into vinegar; when O2 was sufficient and sugar source was insufficient, alcohol would be transformed into jumped and then into vinegar. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>