The three lists, 1, 2 and 3, each include some substances present in animal tissues. 1 glucose, cholesterol, triglycerides, water. 2 glycogen, antibodies, adenine, phospholipids. 3 haemoglobin, carbon dioxide, mRNA, monosaccharides. Which list contains one or more substances with nitrogen atoms?
- A1, 2 and 3
- B1 and 2 only
- C1 and 3 only
- D2 and 3 only