2009年普通高校招生统一考试福建卷(理综)（Fujian unified examination for college entrance examination in 2009 (Li Zong)）.docVIP

2009年普通高校招生统一考试福建卷(理综)（Fujian unified examination for college entrance examination in 2009 (Li Zong)） 2009 college entrance examination volume of Fujian (Li Zong) Relative atomic mass: H 1 C 12 N 14 O 16 Mg 24 Zn 65 Volume 1 (choice of a total of 108 points) The total of 18 items, each item of 6 points, a total of 108 points. First, the choice (12 items. For each question there are four options, only one option in accordance with the requirements of the subject.) 1. of the following relevant experimental narrative is correct A. in the onion cell mitosis experiment, the root has placed dissociation, rinsing, staining the slides, lightly covered with coverslips after microscopic examination B. of yeast, draw the edge counting chamber culture droplets with blood cell counting plate and surrounded by Straw, lightly covered with coverslips after microscopic examination C. in the chloroplast pigment extraction experiment, grinding the leaves should add some organic solvents, such as ethanol etc. D. test tube in pear juice is glucose, the amount can be added after the Fehling reagent and observe the color change, shake 2. the stability of the ecological system described, is not correct The A. ecosystem has the capacity of self adjustment, which is the basis of ecosystem stability Coordinate the internal structure and function of the B. ecosystem, can improve the stability of the ecological system C. biodiversity plays an important role in maintaining stability of the ecological system, reflects its indirect value The more components in the D. ecosystem, food network more complex, ecosystem resilience stability is stronger 3. cell mitosis and meiosis may produce genetic variation, variation which occurs only in the process of meiosis is A. chromosome separation or can not move toward the poles, resulting in variation of chromosome number B. non homologous chromosome free combination, lead to genetic recombination C. chromosome replication by mutation factors, cause gene mut