(附加题)下图简单表示了葡萄酒的酿制过程。请据图分析回答问题：
(1)葡萄酒的酿制原理是先通气进行有氧呼吸，以增加酵母菌的数量，然后进行_______获得葡萄酒。
(2)随着发酵程度的加深，液体密度会逐渐变低(可用密度计测量)，其原因是_______。
(3)生产出的葡萄酒呈深红色，这种有色物质来源于________。
(4)在甲装置中进行搅拌的目的是_______；甲与乙装置中放出的气体主要是________。
(5)如果加入的葡萄糖过多，反而抑制了酵母菌的生长，得不到目的产物，原因是_____________。
(1)无氧呼吸(无氧发酵)
(2)发酵时糖被消耗，产生酒精和CO2，酒精溶液的密度比糖水低
(3)葡萄皮
(4)增加溶氧量；让酵母菌与培养液充分混合 二氧化碳
(5)溶液浓度过大，会使酵母菌细胞过度失水，影响细胞的正常代谢
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| Middle school days are both fun and busy. Students spend their days in class, listening to the interesting and 1 boring words of the teacher. They spend the short breaks running, playing, and shouting happily 2 going back to the classroom again. But 3 should students spend their free time outside school? In Western countries, it is ordinary for students to have a part-time job after school. And at weekends students can make their own money and learn more about the " 4 world". They enjoy the independence (独立) and (of course) money, and parents enjoy the quiet house. 5 , it seems that, in China, parents 6 so much about their children's studies that they would prefer to see their children 7 . most of their free time studying and preparing for all those exams. It is natural for 8 to feel that way in China, but I believe the answer lies in balance (平衡). Sometimes, Western school children work long hours after school to make money, and so they become too tired to listen in class or have no time for homework. But Chinese students spend 9 much time on their studies that all else becomes less important until they want that new MP4 player. So, find a good and healthy balance! If you have a part-time job, you'll be 10 , and your parents will also be happy because you're spending the money you make and not theirs! | ||||
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