Question 1
The classification of prokaryotes in
Bergey's Manual of Systematic Bacteriology is largely based on
◦ cellular morphology.
◦ Gram stain reaction.
◦ type of electron receptor used in cellular respiration.
◦ rRNA sequences.
◦ habitat.
Question 2
Which of the following bacteria oxidize nitrite (NO
2-) to produce nitrate (NO
3-)?
◦
Nitrobacter◦
Nocardia◦
Rhizobium◦
Cyanobacter◦
Azospirillum