第一部分 选择题 (1~30题每小题1分,31~40题每小题2分,共...（The first part of the multiple-choice questions every day (1~30 1, 31~40 title match each 2 points, a total of...）.docVIP

第一部分 选择题 (1~30题每小题1分,31~40题每小题2分,共...（The first part of the multiple-choice questions every day (1~30 1, 31~40 title match each 2 points, a total of...） The first part choice (1~30 title match each 1 points, 31~40 every day 2 points, a total of 50 points) The following are four options, only one of which is in line with the requirements of the c.. 1. the following reagents and reactions that can be used to detect proteins are presented Sultan A. III B. (orange dye; Fehling reagent Benedict reagent); red brick C. iodine solution; biuret reagent D. blue purple; 2. the following questions about cell membranes are incorrect A. B. has Quantouxing cell membrane fluidity of cell membrane The C. cell membrane has recognition function, and the D. cell membrane has asymmetric structure on both sides 3. mitochondria, chloroplasts and endoplasmic reticulum have A. a small amount of DNA B. energy conversion function C. membrane structure D. functions in transporting proteins 4., the most obvious difference between prokaryotic cells and eukaryotic cells is that A. has no nuclear material, B. has ribosomes, C. has no cell membrane, and D. has nuclear membrane 5.a, B and C represent three adjacent cells in a plant, and their cell sap concentration is a b C, and the direction of water infiltration between them is 6.ADP conversion to ATP requires A.Pi, enzymes, adenosine, and energy B.Pi, enzymes C. enzymes, adenosine, and energy D.Pi, enzymes, and energy The essence of 7. cell respiration is that A. decomposes organic matter, stores energy, B. organic compounds, and stores energy C. decomposes organic matter, releasing energy, D., and synthesizing organic compounds, releasing energy 8., vegetables and fruits for long storage, preservation required conditions for A. low temperature, dry, low oxygen, B. low temperature, moderate humidity, low oxygen C. high temperature, dry, high oxygen, D. high temperature, moderate humidity, high oxygen 9. here is a schematic representation of a m