《High school biology textbooks discuss problems-毕业论文翻译》由会员分享，可在线阅读，更多相关《High school biology textbooks discuss problems-毕业论文翻译（11页珍藏版）》请在金锄头文库上搜索。
1、1High school biology textbooks discuss problemsAbstract: High school biology is a good textbook, it has new content and many other advantages, but there are inadequacies in the U.S., pending further discussion. Keywords: high school biology Required Abstract: The high school biology is good teaching
2、 material, it has the content novel and so on many merits, but America and China also had the deficiency, Shang Dai further deliberated. Keywords: High school biology Compulsory Certain question Shang Dai deliberatedShould change Internal and external materials in the education sector window, studen
3、ts will learn her as their role model, teachers will be teaching her as the basis and guidelines. The quality of teaching in a country reflects not only the level of education, and directly affect the mobilization of active learning and the improvement of teaching quality. Zhejiang Science and Techn
4、ology Press, published in 2005, high school is a good textbook. She has the contents are new, Chart colorful, vivid language, well-organized, and many other advantages, but the U.S. there are still some deficiencies, pending further study and discussion. To help prepare our high school biology teach
5、ing standards and improving the quality of teaching, this paper With the following scientific, practical and sincere attitude, combined with their own learning experience, about as shallow my humble opinion and suggestions, and we were discussions with the study; for some commonly used do not meet t
6、he classical scientific terminology and basic concepts of biology made a superficial analysis and also appropriate amendments, edited by Wang biological materials and the teachers and students Fu Zheng. 1, Required 1 cover. In the three-dimensional structure of the DNA double helix diagram, shift th
7、e DNA double helix coiled one week each of the “10 groups base on the” wrong drawing for the “Group of 16 base pairs”; second, to shift DNA double helix structure inside of the base pairs in the “purine base line” wrong drawing for 3the “line of equal length and pyrimidine bases.” because the purine
8、 bases are bicyclic compounds, three-dimensional space, pyrimidine is a single compound, a small three-dimensional space and the molecular weight is 120.1134 purine, but the molecular weight is 80.089 pyrimidine 1,2. 2, Required 1 cover. In the cell model diagram, puts the painting is too large nucl
9、eolus, the nucleus occupied almost half the volume, and the difference between the actual situation is too poor. 3, Required 1 P1 last 6 lines, “all living cells and organisms are the product of the composition of the” recommended read “In general, in addition to viruses and other exceptions, and ot
10、her organisms is made up of cells. “because (A) Non-cell structure of the virus . . and so is the accepted group of living organisms; (B) the biological body is near death by the cell structure of; (C)” Cell product of “the meaning ambiguous. 44, Required 1 P2 line 2, “the main component of normal c
11、ells are nucleic acids and lipids of water . .” should read “The main chemical components of cells, nucleic acids and proteins. But the water in the cell content is most often, the content is about 60% to 90%. Water is also essential to life. In addition, cells also contain carbohydrates, lipids and
12、 inorganic salts. “Because the water content and is not cell the main component of 3. 5, Required 1 P6 “inorganic” (should refer to cells in the salt. Because of this chapter is entitled “The molecular composition of cells” - the author note) one question in any of the following problems: (A) The ce
13、lls inorganic salts and inorganic salts in the extracellular be confused with, such as calcium. because the serum calcium is the extracellular calcium concentration; (B) the cells of the molecular structure of inorganic salts and organic compounds to participate in the mix of atoms, molecules such a
14、s chlorophyll The magnesium atom; (C) on the cells, in vivo, blood, plasma, serum, ambiguous terms such as understanding of the concept, 5describes very confusing. recommended that this issue brief can be modified as follows: “Although the cells in the inorganic salt content small, but it is also es
15、sential life activities, such as phosphate, sodium chloride, potassium sulfate, etc. . . They were mainly present in the cell plasma state, potassium, sodium and cell osmotic pressure, force and charge on the water protoplasm , potassium is also involved in the metabolism of glucose, potassium, magn
16、esium, manganese ions can make some of the activities of, phosphate, carbonate is the pH buffer system, two sets of cells to maintain intracellular pH, the stability of the solution; In addition, the cells assimilation of inorganic salts also continue to provide a variety of mineral nutrition 4,5. 6, Required 1 P38 Figure 2-14. Shift the “somatic cell ch
