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The following are some examples of the first year test questions and answers on biochemical membranes: ** 1. Single choice question ** 1. After mixing the protein with the protein and adding the biuret reagent after a while, the experimental phenomenon should be (C). - [Explanation: The protein itself is a protein. Although it will break down the protein, the protein still exists in the system after the reaction. The biuret reagent can produce a purple reaction with the protein.] 2. In the following descriptions of the experiments related to the enzyme, the correct one was (A). - Explanation: When exploring the high efficiency of an organism, one can compare the effects of different types of organisms and an organic catalyst on the same reaction. Therefore, the independent variable can be the type of organism. When exploring the specific properties of starch, the independent variable could be the type of the catalyst or the type of the catalyst; when exploring the effect of the pH on the activity of the catalyst, the independent variable was the pH; when exploring the effect of the temperature on the activity of the catalyst, the dependent variable was the activity of the catalyst, which was usually expressed by the decomposition rate of the catalyst or the production rate of the product. 3. The following description of the characteristics of the reagent and related experiments is correct (C). - He explained, Low temperature would not cause the degeneration and inactiveness of the starch, but the activity would be reduced. In the experiment of studying the effect of temperature on the activity of starch, Fehling reagent could not be used to detect the experimental results, because Fehling reagent needed to be heated when it was used, which would interfere with the setting of the experimental temperature. The hydrogen Peroxide-the substrate-hydrogen Peroxide-would decompose automatically at high temperatures. Therefore, in the experiment of studying the effect of temperature on the activity of the starch, it was not suitable to choose hydrogen Peroxide-as the research object. Compared with an organic catalyst, the effect of the reduction of chemical reaction activation energy by the catalyst was more obvious, so the efficiency of the catalyst was higher. 4. The effect of an organism's biocatalyst was affected by factors such as pH. The following statement is wrong (A). - "Explanation: The molecules of the pepsin have a certain shape, and their shape is specific and related to the combination of the substances. Most of the pepsin is a protein, and the strength of its effect can be expressed by the activity of the pepsin. Maltase-like pepsin can catalyze the decomposition of glucose, but it cannot catalyze the decomposition of cane sugar, which reflects the specific nature of the pepsin. The suitable pH-like pepsin is acidic. When it is added to a solution with pH10, its spatial structure will change, causing the pepsin to be deactivated. 5. The graph below shows the curve of the effect of temperature on the activity of the enzyme. The error in the analysis is (A). - Explanation: In the picture, the temperature at point A is lower, the activity of the protein is lower, and its structure is not destroyed. The temperature at point C is too high, and the structure of the protein has been destroyed. The two structures are different. Point B represents the maximum activity of the protein. ** 2. Short Answer Questions ** 1. What was the role of the protein in cell metabolism? - The answer was that the metabolism of the cell was affected by the activity of the protein. It could reduce the activation energy of the chemical reaction, allowing the chemical reaction in the cell to proceed efficiently under mild conditions such as normal temperature and pressure. 2. Please give an example to explain the specific properties of the reagent. - Answer: For example, amylases can catalyze the decomposition of starch into products such as glucose, but they cannot catalyze the decomposition of cane sugar. Urease could only catalyze the decomposition of carboric acid into nitrogen and carbon dioxide, but not other substances. This reflected the characteristic of the catalyst that could only catalyze one or a type of chemical reaction, which was the specific nature of the catalyst. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

In the romantic comedy " The Romance of the Young Master and Me," Yu Shuxin played the role of the daughter of a rich family, Cheng Qianyu. In the movie, Yang Zhiwen played the role of a grassroots maid who fantasized about winning over the cold young master Gu Yanxi played by Ye Shengjia, and Yu Shuxin played the role of Qian Yu, who also liked Gu Yanxi. This led to the silly plot of the two girls fighting for love. While waiting for the TV series, he could also read the exciting content related to this site!

The boss of The King's Avatar was called Chen Guo. While waiting for the anime, you can also click on the link below to read the classic original work of The King's Avatar!

If you are applying for the Yixing Teacher Establishment, the registration method is to send an email or mail. If you choose to send an email, all the materials should be in the form of pictures. The email file address is [email protected], and the email title is marked with "Excellent talents, highly skilled talents____job application materials". If you choose to send an email, please provide a copy (one copy) and arrange it in order. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

There were many problems with Live streaming eCommerce anchors: 1. ** Lacking in supply chain review **: Some of the top streamers mainly carry out live broadcasts with goods after gaining followers through Short videos, but their supply chain review is not strict enough, resulting in frequent failures. For example, the problems in Brother Yang, Luo Yonghao, and Liu Genghong's live broadcast rooms reflect the lack of deep control over the supply chain when choosing partners. 2. ** Lacking professionalism **: Some streamers pursue profits too much and lack professionalism. In particular, the top streamers had a greater impact on public opinion. In order to pursue high click rates and profits, some top streamers disregarded ethics and conduct bad behavior during their live broadcasts, affecting the atmosphere of the live broadcast platform and setting a bad example for small and medium-sized streamers. 3. ** False publicity problem **: The public opinion on the live broadcast of consumer rights protection with goods reflected that false publicity had become the primary problem. Some anchors carried out false publicity during the live broadcast to mislead consumers. 4. ** Quality of products **: Compared to 2022, the proportion of public opinion regarding quality of products of some streamers such as Li Jiaqi and Crazy Brother Yang has increased, reflecting the lack of control over products. 5. ** Price Misleading Problem **: The streamer may mislead the price during the live broadcast, causing consumers to have a wrong perception of the price of the product. 6. ** Uncivilized delivery problem **: Some streamers carry goods uncivilized, which affects the image of the live streaming industry. 7. ** Delivery problem **: After the live broadcast, there may be problems such as delayed delivery, which will affect the consumer's shopping experience. 8. ** Return and exchange problem **: The product itself or the streamer's description of the product may not match the actual situation, resulting in the problem of returning and exchanging goods. 9. ** Selling prohibited goods **: Some streamers may sell prohibited goods, which is a serious violation of laws and regulations. 10. ** Inducing over-the-counter transactions **: Some streamers may induce consumers to engage in over-the-counter transactions for certain interests, making it difficult to protect the rights and interests of consumers. 11. ** High cost **: From the perspective of merchants, the high cost of streamers is also a problem. The prices of streamers in first-tier cities were often beyond the ability of most sellers. It was more difficult to find suitable streamers in second-tier and third-tier cities. The salary, share, and traffic fees of streamers had a greater impact on the profit margin of the live broadcast business. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

In "Running Man," White Deer had a stunning appearance. For example, in a certain episode, Bai Lu wore bright clothes and entered the venue with a bright smile. As soon as she appeared, she shouted," It's too dazzling." Her appearance instantly ignited the atmosphere and attracted the attention of many viewers. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

'Top Luck, Secretly Cultivate for a Thousand Years' was a cultivation novel with Han Jue as the male lead. In this novel, Han Jue reincarnated into the cultivation world and brought the game attributes. He could shake the dice to refresh his spiritual roots and innate luck. He spent eleven years shaking his innate luck, such as obtaining [Peerless: Immortal Appearance, Top Charm],[Destiny Sword Maniac: Top Sword Dao Aptitude, Top Sword Dao Comprehension],[Body Technique: Top Body Technique Aptitude],[Immortal Emperor Descendant: Obtained a Peerless Immortal Cultivation Technique, 1,000 high-grade spirit stones], and other luck. For the sake of longevity, he decided to cultivate quietly and not be in the limelight. A thousand years later, when the Immortal World was cleaning up the mortal world, he had no choice but to take action. Only then did he realize that immortals and gods seemed to be nothing more than this. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The foreign body sensation and itchiness in her throat could be caused by many reasons. If it was sore throat, drugs such as furacilin solution and compound Borax solution could be used; If it was rheumatism, drugs such as ambroxol acid and roxiobin could be used to treat it. If it was wind-heat evil poison, sore throat, cough due to lung heat, acute sore throat, tonsillar inflammation, upper respiratory tract infection, etc., Lingdancao Granules could be used. For symptoms such as fever, irritability, sore throat, etc. caused by external wind-heat poison and internal heat poison, Qingkailing could be used. You can also take Qinghou Liyan Granules, Pharyngic Tablets, Compound Green Olive Liyan Tablets, etc. Qinghou Liyan Granules can clear heat and relieve sore throat, widen chest and moisten throat; Pharyngic Tablets can nourish yin and moisten lung, clear heat and detoxify; Compound Green Olive Liyan Tablets can nourish yin and clear heat, relieve sore throat and detoxify. It should be noted that these symptoms in the throat may also be related to various diseases such as gastroesophagus reflex, globus disease, sinusies, etc. If the symptoms persist or worsen, you should seek medical attention in time and carry out targeted treatment after determining the cause. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

According to the recruitment announcements issued by the Jianggan District Education Bureau of Hangzhou City on October 27,2020 and November 16,2020, the list of teachers to be hired in 2021 has been publicized after public registration, written examination, interview, physical examination, political review and assessment. You can check the attachment: Public Recruitment of Teachers to be Hire by the Institution of Jianggan District Education Bureau of Hangzhou City in 2021.xls to obtain the specific list of teachers. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>