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Summary. During insulin synthesis and secretion, the area of the endoplasmic reticulum decreases because the precursor proteins that synthesize insulin are present in the lumen of the endoplasmic reticulum, while the mature form of insulin needs to be transported to other organs such as the Golgi complex. This process requires a large number of endoplasmic reticulum involvement, including synthesis, modification, folding, and transport, among others.
However, at the peak of insulin production, the endoplasmic reticulum needs to take on more of the task of synthesizing insulin, resulting in a shrinking surface area of the endoplasmic reticulum. In addition, the secretion of insulin also involves other organs in the pancreatic islet cells, such as insulin granules and insulin secretion granules, etc. The membrane structure of these organs is similar to that of the endoplasmic reticulum, and they also play an important role in insulin synthesis and secretion, further increasing the pressure on the surface area of the endoplasmic reticulum.
Therefore, the continuous reduction of the surface area of the endoplasmic reticulum is a normal physiological phenomenon during insulin synthesis and secretion.
During insulin synthesis and secretion, the area of the endoplasmic reticulum decreases (please explain why, thank you).
During insulin synthesis and secretion, the area of the endoplasmic reticulum decreases because the precursor proteins that synthesize insulin are present in the lumen of the endoplasmic reticulum, and the mature form of insulin needs to be transported to other organs such as the Golgi complex. This process requires a large number of endoplasmic reticulum involvement, including synthesis, modification, folding, and transport, among others. However, at the peak of insulin production, the endoplasmic reticulum needs to take on more of the task of synthesizing insulin, resulting in a shrinking surface area of the endoplasmic reticulum.
In addition, the secretion of insulin also involves other organs in the islet cells of pancreatic tan, such as insulin granules and insulin-secreting granules. The membrane structure of these organs is similar to that of the endoplasmic reticulum, and they also play an important role in insulin synthesis and secretion, further increasing the pressure on the surface curvature area of the endoplasmic reticulum. Therefore, the continuous reduction of the surface area of the endoplasmic reticulum is a normal physiological phenomenon during insulin synthesis and secretion.
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Summary. Hello dear, it is a pleasure to serve you <>
High school biology round did not review well such a remedy: 1What we need to do now is to adjust our mentality, calm down and review well, so that there is a possibility of counterattack.
2.Biology books must be read carefully, including elective and compulsory textbooks, and the notes under the books should also be taken seriously. 3.
After figuring out the basic concepts, learning the formulas and calculation methods, and then summarizing the questions that will be examined, and making a breakthrough.
How to remedy the lack of review in the first round of high school biology?
Hello dear, it is a pleasure to serve you <>
High school biology round did not review well such a remedy: 1What we need to do now is to adjust our mentality, calm down and review well, so that there is a possibility of counterattack.
2.Biology books must be read carefully, including elective and compulsory textbooks, and the notes under the book should also be taken seriously. 3.
After clarifying the basic concepts, learning to answer the formulas and calculation methods vertically, and then summarizing what questions will be examined, and making a breakthrough.
Is it necessary for me to start again now?
Dear, it is necessary to start reviewing again, and you must first adjust your mentality.
What review materials can I recommend.
What is the schedule of the Xuzhou High School First Model Exam?
Dear, high school biology review materials recommend Li Lin's biology notes.
Extended Material: High School. After graduating from junior high school, students take the high school entrance examination, which is called the high school entrance examination.
In junior high school, the subjects of science, morality, and social studies were divided into history, geography, biology, physics, and chemistry. The law stipulates that school-age children should attend local secondary schools. The high school entrance examination is based on the filial piety shirt students who apply for volunteers before the exam, and after the exam, the sullen grandson is voted by the school through the scores.
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1. Biology is the easiest subject to compare among all science subjects, it doesn't matter if you haven't been exposed to it before, as long as you are willing to learn, everything can start from scratch. For high school students, it is very important to pay attention to the basics, in the process of learning biology, do not think that it is easy to understand, you must be very proficient in mastering, and turn the knowledge in the books into your own things.
2. Flexible application is the key to learning biology well, and the purpose of learning is to apply. Only by using knowledge flexibly can we remember it, and we must attach great importance to this aspect by using knowledge to solve theoretical problems or solve practical problems in production and life, especially high school students whose biology grades are not very good.
3. If you want to learn biology well, the most important step is to master the memory method that suits you. Memory is the foundation of learning and the storehouse of knowledge, so high school students should learn to adapt to the characteristics of different biological knowledge and appropriate memory methods, which can effectively improve the efficiency and quality of learning.
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The examination of biological knowledge is more about the connection between knowledge points, such as the comprehensive question of photosynthetic respiration in the metabolism module, the difference between autosomal inheritance and companion inheritance in the genetic module, etc., in the review process, the internal connection between the knowledge points is excavated, for example, the intermediate link between photosynthesis and respiration is the content change of carbon dioxide, oxygen and organic matter, so how to use these three quantities to calculate the rate of photosynthesis and respiration? If the factors that affect the rate of photosynthesis and respiration, such as the intensity of light, change, then what happens to the rate of photosynthesis and respiration? When is it equal, when is the photosynthetic rate greater than the respiration rate, when is the respiration rate greater than the photosynthetic rate, and when is there only respiration?
These are the most important and difficult points of the exam that we should pay attention to.
Especially for the experimental module, you must have a good understanding of the principles, design ideas, and precautions of the experiments you have learned this semester.
There is no biology question, only whether you know. If you have a plan to read the biology textbook or the summary of knowledge points, you will definitely see things that you have never known, and there are several model block diagrams that must be memorized (such as photosynthesis, respiration, various regulatory mechanisms of the human body, gene separation and recombination...).It will work soon, but the key is to have the right attitude, brother!
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