Texas Southern University - BIOL 347

Chapter 11

The Diversity of Prokaryotic Organisms

Matching Questions

1)Which of the following best matches the description:

1. Klebsiella pneumoniae             
2. Neisseria gonorrhea                
3. Clostridium tetani        
4. Escherichia coli            
5. Salmonella typhi          

True / False Questions

1. The skin and oral cavity may have anaerobic microenvironments.

2. Lactic acid bacteria such as Streptococcus are obligate fermenters that can exist in an aerobic environment due to their use of catalase to mitigate the presence of oxygen.

3. Bacteria and Archaea both have members that use sulfur compounds as a terminal electron acceptor.

4. Anoxygenic phototrophs grow photosynthetically only under aerobic conditions.

5. Obligate aerobes may transform energy via fermentation.

6. The most medically relevant species of Pseudomonas is P. aeruginosa.

7. Endospores of Bacillus stearothermophilus are used in testing autoclave operation.

8. Streptomyces produce a number of antibiotics.

9. Rhizobium is considered an endosymbiont with plants.

10. Chlamydia occurs in two forms, a reticulate body and an elementary body.

Essay Questions

11. Which bacteria would move most easily through viscous media?

12. Would penicillin be very effective against non-growing bacteria or Mycoplasma?

13. Why is crown gall considered a parasite and Rhizobiuman endosymbiont?