What are the most difficult biology questions in the college entrance examination?
The difficult questions in high school biology were roughly the following: 1. * * Calculation questions related to protein **: - It involved the calculation of the relationship between the number of peptidic bonds, the number of water molecules removed, the number of ammo acid molecules, and the number of peptidic chains of the protein. For example, the number of peptidic bonds in a protein was equal to the number of water molecules removed, which was equal to the number of acid molecules minus the number of peptidic chains. The number of water molecules required for complete digestion of a protein was equal to the number of water molecules removed during the formation of the protein. - The calculation of the minimum number of amine groups and starch groups in a protein, the number of which is at least equal to the number of protein chains. - To calculate the relative molecular mass of a protein, one needed to consider the average relative molecular mass of the protein, the number of the protein, and the number of water molecules removed. In other words, the relative molecular mass of a protein was equal to the average relative molecular mass of the protein multiplied by the number of the protein minus 18 multiplied by the number of water molecules removed. There were also calculations related to the ratio of the number of bases in genes, messenger R A bases, and the number of aa in the protein. 2. * * The calculation of the number of layers of biological membranes: - It was necessary to clarify the number of membrane layers in different cell structures. For example, one biological membrane was equal to one layer of the Phospholide bilayers, which was equal to two layers of the Phospholide bilayers; Ribosome, Centrosome, and Chromosome had no membrane structure; Cell membrane, tonosome membrane, plasmatic membrane membrane, and Golgi membrane were single membranes; The membranes of mitochondria, chlorites, and the nucleus were double membranes (the number of membrane layers that substances passed through the nuclear membrane from the nuclear pore was zero). - For structures such as the walls of the lungs, capillaries, and digestive tract, which were composed of a single layer of cultured cells, passing through one layer of cells required passing through two cell membranes (biological membranes) or four layers of Phospholide molecules. 3. * * Calculation problems related to photosynthesis and breathing **: - According to the relationship between the raw materials and the products in the reaction formula, the chemical calculation was carried out. For example, the mole ratio of carbon dioxide produced by the two processes was 1:3 when the same amount of glucose was consumed, and the mole ratio of glucose consumed by the two processes was 3:1 when the same amount of carbon dioxide was released. - For green plants, it is necessary to distinguish between the net photosynthesis rate measured under light and the actual photosynthesis rate.(The actual photosynthesis rate is equal to the net photosynthesis rate plus the respiratory rate), which involves the calculation of the actual oxygen production of photosynthesis (equal to the measured oxygen release plus the oxygen absorption and consumption of the respiratory rate), the actual carbon dioxide consumption of photosynthesis (equal to the measured carbon dioxide consumption plus the carbon dioxide release of the respiratory rate), and the net production of glucose by photosynthesis (equal to the actual production of glucose by photosynthesis minus the consumption of glucose by the respiratory rate). In addition, for organisms such as yeast that could produce both oxygen and oxygen and produce CO2, it was necessary to calculate the type of breathing based on the volume ratio of the released CO2 to the absorbed O2. 4. * * Experimental design questions **: For example, National Volume A required the design of an experimental plan to verify that protein fragments could appear in the lysomes of engulfing cells; the new curriculum standard volume required the design of an experimental plan to detect the AIDS virus in blood samples, etc. These questions tested the students 'ability to use basic experimental methods and techniques to solve new problems, including designing experimental plans, optimization of experimental procedures, and analysis of experimental results. 5. "Genetics related topics: For example, the new curriculum standard paper mentioned that white thorn melons were favored by consumers, and practical problems in the production and breeding of fruit and vegetable crops with high yield of female plants. It required the use of genetic crossing methods to screen out the pure body of white thorn female plants. 6. * * Big topics related to ecology **: For example, the new curriculum standard volume took Yundan Lake in Xiameng as the theme, examining the reasons for monitoring nitrogen in water quality assessment, the physiological process of carbon neutrality of mangroves, the key role of birds and other consumers in the ecosystem, etc. National Volume A took the protection of endangered species B as an example, showing the discovery of a small number of wild individuals during the protection process, artificial breeding, release in the wild, and gradually expanding the population. This type of question tested ecological knowledge and incorporated some guidance from ideas. Read more exciting novels for free
What procedures do I need to prepare to open my own photography studio?
Opening a photography studio required a business license, which could be in the form of an individual business. When handling, you need an ID card, a copy of the real estate certificate of the registered address for commercial use, and a proof of residence form (signed and stamped by the property owner). For non-locals, you may also need a temporary residence permit. Its business scope could be written as: photography and printing services, typing and copying, graphic design, computer graphic design, computer animation design, product design, arts and crafts design, sales of office supplies, cultural goods, arts and crafts. In addition, they also had to abide by relevant laws and regulations to avoid operating industries that required the permission of the public security organs without permission. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The male protagonist got a terminal illness and practiced martial arts to recover.
The main character of " A World of Enemies Within inches " had transmigrated to a world where martial arts flourished. He had a super recovery ability. No matter what kind of injury he had, he would be fine after sleeping. Even if it was cancer, he could recover. It was in line with the setting of the main character who had a terminal illness and recovered through martial arts related abilities. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Fantasy novel recommendation, ending the ghost trail
" The Traces of the Ghost " was a completed fantasy novel. The story revolved around the main character, Zhao Dingyuan. Zhao Dingyuan was the reincarnation of Heavenly Master Zhang. On the night of the bloody rain, lightning descended. As a spiritual child of nine generations, he bore the heavy responsibility of eliminating demons and saving the world. In the novel's chaotic world, hundreds of ghosts were wandering at night. Under such a background, Zhao Dingyuan became a disciple of the Xuanmen Sect. Through his own efforts, he shouldered the burden of defeating demons and fighting against evil, just to protect the paradise of the mortal world. If you like fantasy novels, this novel might be a good choice. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Fantasy Lord X
I'm not sure what you mean by 'Fantasy Lord X'. If it was a fantasy lord type novel, there was " Fantasy Lord: Starting from Daily Intelligence ", where the protagonist transmigrated to become the nine sons of the count. He did not inherit the title but relied on the daily intelligence system to carry out territory construction and hegemony activities in the fantasy world. There was also " Lord of Calamity: Becoming a Demon Duke at the Beginning ", where the protagonist transmigrated to the fantasy world to become a lord of expansion and used the Goldfinger Lord System to develop his territory in the process of resisting monster invasion. If this is not what you want, please provide a more specific question. The novel " This Feudal Lord is Very Scientific " is equally exciting. Everyone is welcome to click and read it!
Who was Ma Xiaocui with in the end?
Ma Xiaocui ended up with Gang Zi. The original work was equally exciting. You could click on the original work of " The Story of Rose " to understand the plot in advance!
How to see how many people apply for positions in public institutions
You can check the number of people applying for positions in public institutions through the following ways: First, visit the website of the Human Resources and social protection Bureau in the application area, find the latest registration form in the work dynamic column or related columns, and download the attachment to check; Second, search for relevant information on recruitment or examination websites; Third, log in to the registration system, enter the position and code to check the number of applicants for the corresponding position; Fourth, pay attention to the websites of some tutoring institutions, some of which will announce the number of applicants; In addition, they could also communicate with other candidates through social media, forums, etc., but the accuracy of the information obtained through this method was difficult to guarantee. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Minecraft Animation Xiaobai's Life
In Minecraft, there were some speculations about the background story of Whitey (Skeleton). In the early days, there was a theory that Whitey might have been a human in its previous life (the setting in the game was similar to Steve's appearance), a carefree adventurer, and a girlfriend. However, one day, Little White was killed by bandits and his girlfriend was taken away. After the baptism of time, Little White was only left with a pile of bones and finally became a skeleton. In the game settings, skeletons were officially added in version 0.24. As the version was updated, they would spontaneously combust when exposed to the air during the day. They were very afraid of wolves (skeletons riding on spiders would jump down and run away when they saw wolves). They were a type of undead. In addition, there were some animations with Little White as the main character, such as Minecraft Animation: Little White's Life, which showed Little White's story. However, there was no exact content about the so-called "04 Minecraft Animation Little White's Life", so it was impossible to answer accurately. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What does the type of ultrasound transmission in biological tissues mean?
There are many types of ultrasound transmission in biological tissues, which refers to the different ways or modes of ultrasound transmission in biological tissues. In principle, vibration and waves in ultrasound physics were the theoretical basis for studying the transmission characteristics and laws of ultrasound in biological tissues. During the transmission process, due to the characteristics of biological tissues and the differences in geometric size, the transmission laws and wave phenomena of ultrasound transmission, reflection, scattering, refraction, and interference would be different. For example, according to the different characteristics of the tissue, the ultrasound wave may be transmitted more or reflect more. These different transmission types will eventually cause different changes in the parameters such as the amplitude, frequency, phase, and time of the received signal. Therefore, the difference of the tissue and the pathological characteristics of the tissue can be identified through the measurement and imaging of these parameters. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What's the name of the TV series that rolls cigarettes with one hand?
In the Hong Kong drama " Rolling a Cigarette ", there was a scene where the character rolled a cigarette with one hand. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to tune out the TV channel on the TV of the Hai Er TV
There were several ways to call up a TV channel on the television: 1. Search for programs by menu: When searching for channels on the new TV, you can first select the menu button on the remote control and then find "Search" or "Automatic Channel Search". If you want to watch TV programs under the TV channel, press the menu to search for programs, then press the channel + to bring up the program; press the confirmation button under the DTV to call up the program list. If you were watching live TV on the internet, open the app and press the confirm button to call out the program list. 2. If you want to watch a live broadcast on TV, you need to apply for an external radio and television set-top box. Usually, when they applied for a wide band, the operator would give them a set-top box. Usually, you could watch live broadcasts or order them on an iPad set-top box, but some movies might require a membership card. 3. Third party software installation: At present, smart televisions and smart network set-top boxes are generally Android systems, and third-party software can be installed. There were two ways to install the software for watching live broadcasts. One was to install it in the application store of the company. For example, open the application store of the company, find the Dang Bei Assistant, download it, and open it. When the Dang Bei Assistant chooses to speed up, it will recommend a TV application. Control the remote control to find the Dang Bei Market, click the install button, and then search for the first letter of the software in the market. Find TV Home 3.0 and install it. The second method was to install it remotely with the help of a mobile phone (the mobile phone and the TV needed to be connected to the same local area network). Some of the TV sets needed to be in safe mode. Before starting, they needed to choose to allow the installation of third-party applications. They needed to install a Wukong remote control on the mobile phone and turn it on. It would automatically search for the TV sets in the local area network and connect to them. Then, they would search for TV users on the Wukong remote control, choose the version they liked, and push it to the TV for installation. After installing it, they could watch TV programs. 4. If the TV supported the WebTV function, it could connect to the Internet, open the TV application store, and download live TV software, such as Mango TV, iQiyi, and QQ Video. Then, it could choose the corresponding channel to watch. 5. If the screen projection function was supported on the television, the live broadcast software on the mobile phone or computer could be projected to the television by connecting to the mobile phone or computer. 6. If the TV supported USB playback, the live TV broadcast software could be downloaded to the USB drive, plugged into the USB port of the TV, and selected the corresponding channel to watch. While waiting for the TV series, he could also read the exciting content related to this site!