It s about to be a senior year in chemistry and biology that has been reviewing for a while

I think that's normal. When I was preparing for the college entrance examination, I also had this situation. This is a normal feeling for every candidate who takes the college entrance examination to review.

Don't be in a hurry about this kind of thing. You just have to follow the teacher's revision plan, step by step, and the further you go, you will feel that you have mastered a lot of knowledge before you know it.

In the primary review stage of the college entrance examination, you don't have to be nervous, as long as you review well, your fear of the college entrance examination will slowly disappear, and instead you want to take the college entrance examination early and show your skills.

There are still several sets of mock test papers, especially the college entrance examination mock test papers of your province, and it is best to do the college entrance examination questions of previous years. The premise of doing the mock paper is that you have to do it after completing the teacher's task.

Either way, the college entrance examination is not scary, as long as you work hard.

Relax and get ready for the challenge!

I'm a junior in high school this year, and I'm going to take the college entrance examination tomorrow.

I would like to share with you my experience in the hope that it will be useful to you.

First of all, after entering the third year of high school, everyone's learning atmosphere became tense.

Learning time in the classroom is the most important. Listening carefully to a lesson at school is more useful than reading a book at home for 2 hours! Be sure to remember to listen carefully in class and follow the teacher.

After class, you should do some questions appropriately according to your own ability, and you must pay close attention to your strong subjects, and you must work hard to make up for your weak subjects.

After the first examination, try not to sleep after 23 o'clock at night, and ensure adequate sleep, which is of great help to the brain and body.

Also, the result of the exam is not important, the important thing is to understand what you don't know, you can't relax after the test, and give up on yourself if you don't do well.

It's also important to believe in yourself.

As for the mock test papers, you can also do it, you can test all the subjects once a week, or test one subject every week, which is okay.

To attack the puzzle on the premise of laying a solid foundation, remember, the foundation is the most important!

The plan is best drawn up by yourself according to your own situation.

Finally, let me tell you, today's things are done today, and they can't be postponed until tomorrow.

Good luck with the title of the gold list next year.

How can my generation be a Penghao person, remember this sentence, we must have the feeling of standing a group, the consciousness of standing a group, and the action of standing a group.

The heroes of the world, who else can I be. Be proud, have a sense of arrogance.

Comprehend by analogy. This is very important.

The more you get to the final sprint, the more you can't panic. Making a good plan and reviewing it well is key. Therefore, it is necessary to arrange an appropriate time for memorization and memorization every day.

Focus on key points, difficulties, and hot spots

In previous college entrance examinations, regulation, metabolism, ecology, and heredity are the key points of the content of non-multiple-choice propositions, no matter how the form changes, but only the main body of the framework is unchanged. Looking back on the biology test questions of the college entrance examination in recent years, no matter how they have changed, the general theoretical basis is derived from the textbooks and questions. Therefore, in the sprint stage, it is still necessary to return to the textbook and not let go of any knowledge point in the textbook.

We usually have a lot of reference materials in the review process, but no matter how beautiful these materials are, they can only play an auxiliary role, and the important content is still textbooks, so students can put five books (compulsory) during the winter vacation.

1. Compulsory. 2. Compulsory.

3. Electives. 1. Elective 3) Turn it out and read one or two chapters a day. The purpose of reading books is to understand the basics, and there is no need to memorize them. Don't put the textbook on the shelf again after reading it, and take out the textbook to read it more and read it frequently when you review it in the spring.

In particular, the investigation of the laws of heredity is also the focus and difficulty of the previous college entrance examination propositions. Therefore, in the review process, more time should be spent on reviewing and strengthening key knowledge, and you can find a breakthrough from the college entrance examination questions in previous years. If it is difficult to learn, you must find ways to make it easy and try to break through the difficulties.

For example, we can combine the knowledge with the reality, such as the spatial structure of DNA, and show the DNA model, then the problem can be solved quickly. In fact, the learning of biology needs to help understand some abstract knowledge with the help of models, specimens, etc.

In terms of hot spots, you can pay more attention to the epidemic. Compared with biology, it is necessary to pay attention to the relationship between social hotspots and life, health and ecology.

Inductive summaries are essential

At this stage, all the knowledge points have been taught by the teacher, and what should be done now is to summarize the knowledge points of each module, summarize them into systematic knowledge points, and clarify the vertical and horizontal relationship between the points and the lines. Expand into a knowledge network that suits you, so that it is convenient for later memory and understanding.

Improve your problem-solving speed and test-taking skills

It is necessary to have comprehensive test-taking training in the sprint stage. It's a good idea to specify a schedule, such as twice a week. For textbooks, you can choose real college entrance examination questions or mock questions; And when doing the questions, you can't blindly delay the time, and you must complete the self-test within the specified time.

After completing the test papers, it is necessary to analyze the test papers and do a good job of checking and filling in the gaps in the later stage. And then continue to improve the training performance.

It is best to review biology by reading more books, returning to the content of the textbook, and paying attention to some details in the book.

Pay attention to the foundation of the textbook Be sure to have a solid foundation, otherwise it will be very hard in the future Develop good study habits, such as making a reasonable plan, writing the plan in a notebook, completing one by one, having your own mistake book, accumulating a book, using a fixed time to do a fixed thing, I used my lunch break to learn English in the third year of high school, and persevered for a year, you will find that there are unexpected gains, and you must follow the teacher closely, don't open a small stove, communicate more with the teachers of various subjects, especially the new teacher, give them a good impression.

Don't quarrel with your friends Don't be awkward Because you can't be distracted in the third year of high school You can't afford to quarrel Don't do questions for the sake of doing questions Be good at thinking, summarizing and feeling This is particularly key However, you will gain from doing every question by yourself Return to the textbook Secretly drop on the students who study well Learn two tricks Ask them more questions and ask them what they think Why do they think so Finally, if you are particularly sleepy at night, just go to sleep It is pointless to stay up The third year of high school must be the pursuit of efficiency and mentality Be kind to yourself.

Physical models are very important Summarize and classify more Chemistry Notes and memory are very important Recall more when you are okay Construct a knowledge network in your brain What should be remembered Be sure to remember Biology Don't underestimate understanding Don't memorize Understanding is very important.

The teacher wants you to think about it, it shows that she is a smart teacher, learning can never change qualitatively without thinking about it on her own, but she may be too busy or only for honor students, don't be passive in learning, take the initiative to ask the teacher, she will be very happy, and you will benefit a lot.

If you want to go home and think about it, it is actually to let you reflect and summarize by yourself. This is important. Those who have learned well should be consolidated, and those who are poor should be strengthened. Go for it! If you don't understand, you can ask the teacher, or you can ask questions. Come on!

Just like us physics teachers, I have to say that it is really sad for us as students to meet such a teacher.

Read all the textbooks of the three years of high school carefully from beginning to end.,Of course, you have to understand and remember.,And then do the questions you have done again.,Finally, just keep practicing the questions.,But don't forget the type of questions you practice.。。

Come on, brother! It's the same with my Sichuan. The foundation of a round of review is very important, only when the foundation is solid, the comprehensive improvement in the future will be ***! Creatures carry it fiercely, and that's what our biology teacher asks us to do.

First of all, we must work hard to study the teaching materials well and learn to integrate them.

The correct answer is:

b.The apoptotic protein gene associated with mammalian mature erythrocytes must have been transcribed before the nucleus disappeared.

In mammals, mature red blood cells lose their nucleus and other organelles, so they have no active transcriptional process. The process of apoptosis in paramature erythrocytes is not associated with the disappearance of the nucleus, but is carried out through its foci mechanisms, such as phospholipid valgus and phagocytic clearance of erythrocytes. Therefore, it is wrong to say that the apoptotic protein gene is transcribed before the nucleus disappears.

The statement in the other options is correct:

a.Senescent red blood cells become smaller in size and have decreased activity of many enzymes.

c.The cryptogenesis of senescent erythrocytes includes PS and proteins, and phagocytic cell membranes may have receptors that bind to valgus PS.

d.Elevated Ca+ concentrations play an important role in erythrocyte apoptosis.

Erythrocyte apoptosis is a complex process that is closely related to factors such as phospholipid valgus, aging characteristics, and elevated Ca+ concentrations.

The main components that make up cell membranes are lipids and proteins. The ps mentioned in the question is an amino acid For reference: red blood cells do not have a nucleus and mitochondria, but according to the physiological behavior of red blood cells and the results of recent research results:

Red blood cell senescence and death is a programmed death process, and the term eryptosis is used to refer specifically to red blood cell apoptosis. Erythrocyte apoptosis is mainly triggered by the increase of cytosolic Ca2+ concentration, which in turn activates Ca2+ sensitive K+ channels, flip enzymes, calpains and other proteolytic enzymes. Many molecules and signaling pathways are involved in the senescence and apoptosis of red blood cells, and their processes are precisely regulated.

Red blood cells have become a good material for studying aging and apoptosis, and the research results are helpful to further explore the apoptosis process of nucleated cells.

If a role is assigned to the nucleus, then the nucleus should be equivalent to Zhuge Liang, who has already arranged the life of the red blood cells before parting with the red blood cells. By expressing some key lossy proteins, calcium ions are eventually released at the end of life, amplified step by step, and finally apoptosis.

How do you review a round? The following Bond Warner High School teachers have compiled some knowledge points about the new college entrance examination and the 2021 preparation guide for each subject, which must be checked by senior high school candidates! Biology test prep recommendations: meet academic quality standards.

Level 3 and 4.

1.In 2021, the biology subject will be changed from a comprehensive science subject in the unified college entrance examination to a selective examination subject for academic level, and in the context of the transformation of the functional orientation of the biology examination, it is necessary to re-examine and study the reform of the content and form of the examination.

2.Selective examinations for the Biological Sciences level require that they meet the academic quality standards.

Level 3 and 4 is the level of applying various important concepts and methods to solve problems in relatively complex situations. Generally speaking, problem-solving situations are relatively complex, and the degree of problem-solving requirements is relatively high.

3.Attach importance to the learning of important concepts of biology and construct a complete biological knowledge network. Some students' mistakes in answering questions are mainly due to the lack of depth of understanding of important concepts, fragmented knowledge, and failure to construct a systematic knowledge network.

In the review, we should return to the textbook, break through the difficult knowledge, deepen the understanding of the concepts, and establish the overall connection between the knowledge in the process according to the academic quality level in the curriculum standards.

Candidates should construct important concepts of biology through learning objectives based on big concepts, understand and comprehend the basic concepts, principles, methods and their application in production and life practice, and do not supplement or add too much or too deep knowledge content other than curriculum standards and textbooks.

In the first round of high-end biology, if you want to review and improve students' grades, you must summarize the knowledge points, which will help improve your grades.

In chemistry, it is necessary to summarize more, and chemical equations are particularly important, because equations reflect the properties of matter, and chemistry studies the properties of matter. In the past, when I studied chemistry in my third year of high school, I sorted out all the equations, and then I often read them, understand them, and memorize them, and I must remember to be very proficient, so that your thinking will be very agile when you do problems.

Biology, like chemistry, belongs to the liberal arts within the sciences. To read more books, read books often, and be familiar with every knowledge point in the book, I memorized the biology book three times before the college entrance examination. Usually when doing questions, when you encounter more partial and unfamiliar knowledge points, write them down in your notebook and read them more, so that there will be no blind spots in knowledge during the exam.

The third year of high school is a protracted battle, and it is very hard. Here's a quote I really liked when I was a junior in high school: Although our bodies are in hell, our eyes are in heaven!

I've written so much, I hope it can help you a little

Biology is actually not difficult Prepare a small notebook Write down some things that you don't know Things that are easy to forget For example, the internal circulation diagram The process of photosynthesis The action diagram of various hormones or something As far as I feel I think it will be more efficient to remember it together with the related diagram You have to know that your place is relatively weak Targeted treatment Chemistry is just like what was said on the first floor In addition, you must do more questions Do more Question sea tactics are nothing more I hope it will help you Ha Come on.