题目

What do consumers really want? That’s a question market researchers would love to answer. But since people don’t always say what they think, marketers would need direct access to consumers’ thoughts to get the truth. And now, in a way, that is possible．At the “Mind of the Market” laboratory at Harvard Business School, researchers are looking inside shoppers’ skulls to develop more effective advertisements and marketing styles．Using imaging techniques that measure blood flow to various parts of the brain, the Harvard team hopes to predict how consumers will react to particular p如图表示细胞膜的亚显微结构．请根据图回答下面的问题．Ⅰ（1）图中A代表 分子．B代表  分子（2）细胞膜从功能上来说，它是一层 膜．（3）叶绿体和线粒体等细胞结构中均有此结构，但执行的具体功能有很大的区别，其原因是由于 不同所致．Ⅱ用含有35S标记氨基酸的培养基培养动物细胞，该细胞能合成并分泌一含35S的蛋白质．（1）请写出35S在细胞各结构间移动的先后顺序 （用“→”表示先后顺序）．（2）请写出三种分泌蛋白． ．