What are the must memorize knowledge points of high school biology?

High school biology must memorize knowledge points:

1.Organisms have a common material and structural base.

2.The cell is the basic unit of structure and function of an organism; The cell is the basic unit of all plant and animal structure. Viruses do not have a cellular structure.

3.Metabolism is the basis for all life activities of living organisms.

4.Organisms are stressful and therefore able to adapt to their surroundings.

5.The characteristics of biological inheritance and variation allow species to remain both largely stable and constantly evolving.

6.Organisms can adapt to a certain environment and can also affect the environment.

7.The fact that the chemical elements that make up living organisms can be found in inorganic nature, and that no chemical element is unique to the biological world, shows that the living and non-living worlds are unified.

8.There are also differences between the living and non-living worlds.

9.Carbohydrates are the main energy substances of cells and the main energy substances for life activities of organisms.

10.All life activities are inseparable from protein.

11.Nucleic acids are the genetic material of all living things.

12.None of the compounds that make up an organism can complete a certain life activity alone, and only when these compounds are organically organized in a certain way can they manifest the life phenomena of cells and organisms. The cell is the most basic structural form of these substances.

13.All living organisms on Earth, except for viruses, are made up of cells.

Biology is a science that studies the morphology, structure, physiology, classification, heredity and variation, evolution, and ecology of living things! Biology is very important in the study of high school, it is a summary of science and liberal arts, if the child does not have a solid foundation of biology in junior high school, it will be very difficult to study in high school, and the learning progress will not be able to keep up with other children with a good foundation.

For the study of biology in high school, many students feel very headaches, biology is a liberal arts in science, so there is a lot of content that needs to be memorized. However, due to the small number of biology questions in the science comprehensive test paper, the knowledge coverage is narrow, and the examination content is small.

Therefore, many students do not pay attention to the basic knowledge and just blindly do the questions. In fact, the knowledge points required by the syllabus are all within the scope of the college entrance examination, and all the knowledge points may be questioned, and each test question is nothing more than a reproduction of a certain knowledge point or several knowledge points.

Moreover, the basic knowledge of biology learned in the first and second years of high school is relatively scattered, and many students do not have a clear understanding of its concepts, laws, principles, etc., and cannot apply them flexibly, resulting in poor grades and feeling more difficult in the comprehensive learning stage of the third year of high school.

In our science comprehensive, high school biology is the subject with the most knowledge points, and there are many knowledge points, which need us to memorize a lot, but biology is a science subject after all, and we must pay attention to understanding when we memorize it. Our second round of review is the best way to test our comprehensive ability, whether it is a knowledge point or a question type, it is not a single point to test, but a comprehensive test center.

Biology knowledge pointsThe most basic elements are C, the basic elements are C, H, O, N, and the main elements are C, H, O, N, P, SP is a component of nucleic acids, phospholipids, NADP+, ATP, biofilms, etc., and is involved in many metabolic processesIf the level of Ca2+ in the blood is too low, convulsions will occur, and if calcium carbonate is lacking in the bones, it will cause osteoporosis

K+ plays an important role in the conduction of nerve excitation and muscle contraction, and when the blood potassium level is too low, the autorhythm of the myocardium is abnormal and leads to arrhythmiasK+ is involved in the synthesis and transport of sugars in photosynthesis.

The ratio of free water and bound water affects metabolism, the proportion of free water increases, and the metabolism of the organism is vigorous and grows rapidlyConversely, when free water is converted to bound water, metabolism slows.

The material basis and basic unit of life.

1. The structural levels of living systems are as follows: cells, tissues, organs, systems, individuals, populations, communities, ecosystems, and cells are the basic units of structure and function of organisms; The most basic living system on Earth is the cell.

2. The operation steps of the optical microscope: low magnification objective observation of the light, moving the field of view** (which shift where) High magnification objective observation: only the fine collimation helix can be adjusted; Adjust the wide aperture and concave mirror.

3. The fundamental difference between prokaryotic cells and eukaryotic cells is: nucleus with or without nuclear membrane Prokaryotic cells: no nuclear membrane, no chromosomes, such as Escherichia coli and other bacteria, cyanobacteria Eukaryotic cells:

There is a nuclear envelope, there are chromosomes, such as yeast, various animals Note: Viruses do not have a cellular structure, but they do have DNA or RNA