题目

下列糖类中，属于动物和植物细胞内都能生成的是（　　）                            A．蔗糖                       B．葡萄糖                    C．淀粉                       D．糖原 答案：解：A、蔗糖是植物体内特有的二糖，A错误；                                               B、葡萄糖是动物和植物细胞内都能生成的单糖，B正确；                              C、淀粉是植物多糖，C错误；                                                                 D、糖原是动物多糖，D错误．                                                                故选：B．                                                                                          

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