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一、细胞结构与新陈代谢例1(2015年重庆卷,4)将下图所示细胞置于密闭容器中培养。在不同光照强度下,细胞内外的CO_2和O_2浓度在短时间内发生了相应变化。下列叙述错误的是()A.黑暗条件下,1增大、4减小B.光强低于光补偿点时,1和3增大C.光强等于光补偿点时,2和3保持不变D.光强等于光饱和点时,2减小、4增大【考点分析】本题主要考查细胞结构(叶绿
First, the cell structure and metabolism Example 1 (Chongqing volume in 2015, 4) The cells shown in the figure below were placed in a closed container culture. Under different light intensities, the concentration of CO 2 and O 2 inside and outside cells changed correspondingly in a short time. The following description is wrong () A. Under dark conditions, 1 increases, 4 decreases B. Light intensity below the light compensation point, 1 and 3 increases C. Light intensity equal to the light compensation point, 2 and 3 to maintain Unchanged D. Light intensity equal to the light saturation point, 2 decreases, 4 increases [test point analysis] This question mainly examines the cell structure (leaf green