Practice Questions - Discuss and determine answers to the following questions. 

1. These are all bacteria, what kind of microscope was probably used for this image?

3. List all the Eukaryotic cell components and organelles you can remember.

Bacterial Shapes

4. Match the following descriptions with the best answer.

_____ Rods (Bacilli) completely separate after division.        _____ A comma shaped bacterium.

_____ Cocci arranged in chains                                 _____ Cocci arranged in a square of four 

 _____ A thin, flexible spiral.                                                        _____ A thick, rigid spiral.

_____ Cocci arranged in pairs                                                    _____ Rods arranged in chains.

A. bacillus                            F. streptococcus
B. streptobacillus                G. staphylococcus
C. spirochete                       H. diplococcus
D. spirillum                           I. tetrad
E. vibrio                               J. sarcina

5. A gram stain of discharge from an abscess shows cocci in irregular, grape-like clusters, that are Gram positive and large numbers of WBC's. What is the most likely genus of this bacterium?

6. A vaginal specimen on a pregnant woman shows large numbers of cocci in chains and no WBC's. Are there any concerns about this picture.

7. Through an interpreter, a Camobodian immigrant complains of a cough that has lasted for over 6 months. The patient complains of fatigue, night sweats, and weight loss. A gram stain and culture are ordered but the Gram stain reveals only normal flora. What else could be done to follow up on this patient?

8. A patient, recently returned from Aruba, has a lesion on her face near her lips. The lesion appears painful and moist with a clear exudate. What kind of microscopy could be used to examine a smear of the exudate?