北京大学：《微生物学》课程作业习题（英文版）Questions list for Bacteria

Questions list for Bacteria I 1. Draw the phylogenetic tree of the major lineages of Bacteria based on 16s ribosomal RNA Sequence comparisons. 2. How many groups of purple bacteria you have learned? 3. Describe the differences between purple bacteria, green bacteria an cyanobacteria 4. Why do purple bacteria, green bacteria and cyanobacteria have various colours? 5. Describe the difference between nonsulfur purple bacteria and sulfur purple bacteria. 6. List four purple sulfur and nonsulfur bacteria you know, respectively 7. Describe the difference between green nonsulfur bacteria and green sulfur bacteria. 8. List three green sulfur and green nonsulfur bacteria you know, respectively. 9. What are the uniqueness in heliobacteria? 10. How are cyanobacteria grouped? l1. What is heterocyst in cyanobacteria? 12. What is prochlorophyte? 13. List three nitrosifying and nitrifying bacteria, respectively. 14. Give two species of sulfur and iron oxidizing bacteria and tell what they can do. 15. Describe the unique properties hydrogen-oxidizing bacteria have 16. How to classify methanotrophs and methylotrophs

Questions list for Bacteria I 1. Draw the phylogenetic tree of the major lineages of Bacteria based on 16S ribosomal RNA Sequence comparisons. 2. How many groups of purple bacteria you have learned? 3. Describe the differences between purple bacteria, green bacteria an cyanobacteria? 4. Why do purple bacteria, green bacteria and cyanobacteria have various colours? 5. Describe the difference between nonsulfur purple bacteria and sulfur purple bacteria. 6. List four purple sulfur and nonsulfur bacteria you know, respectively. 7. Describe the difference between green nonsulfur bacteria and green sulfur bacteria. 8. List three green sulfur and green nonsulfur bacteria you know, respectively. 9. What are the uniquenessin heliobacteria? 10. How are cyanobacteria grouped? 11. What is heterocyst in cyanobacteria? 12. What is prochlorophyte? 13. List three nitrosifying and nitrifying bacteria, respectively. 14. Give two species of sulfur and iron oxidizing bacteria and tell what they can do. 15. Describe the unique properties hydrogen-oxidizing bacteria have. 16. How to classify methanotrophs and methylotrophs?