微生物学 - 2026 进行中

科目: 微生物学
级别: V
类别: 大学生
测试题目: 英语
问题示例: Why do Gram-positive cells typically remain purple after the decolorization step of Gram staining? Their thick peptidoglycan layer retains the crystal violet–iodine complex, Their outer membrane prevents iodine from entering the cell, Their capsule absorbs safranin more strongly than crystal violet, Their cytoplasmic membrane contains mycolic acids