Use the following choices to answer questions 3–5:
a. Bacillus coagulans
b. Byssochlamys
c. flat sour spoilage
d. Lactobacillus
e. thermophilic anaerobic spoilage


A heat-resistant fungus that causes spoilage in acidic foods.

Pathogenic bacteria can be

a. motile.

b. rods.

c. cocci.

d. anaerobic.

e. all of the above.

Use the following choices to answer questions 2–5:

a. Candida

b. Chlamydia

c. Gardnerella

d. Neisseria

e. Trichomonas

Microscopic examination of vaginal smear shows ovoid eukaryotic cell.

Use the following choices to answer questions 2–5:

a. Candida

b. Chlamydia

c. Gardnerella

d. Neisseria

e. Trichomonas

Microscopic examination of vaginal smear shows epithelial cells covered with bacteria.

Use the following choices to answer questions 2–5:

a. Candida

b. Chlamydia

c. Gardnerella

d. Neisseria

e. Trichomonas

Microscopic examination of vaginal smear shows gram-negative cocci in phagocytes.

Your culture from a pneumonia patient appears not to have grown. You do see colonies, however, when the plate is viewed at 100x.

a. Chlamydia

b. Coccidioides

c. Histoplasma

d. Mycobacterium

e. Mycoplasma

State the shape and arrangement of the pictured bacterial samples. <IMAGE>

For each of the following statements that is true, write “true” in the blank. For each statement that is false, write the word(s) that should be substituted for the underlined word(s) to make the statement correct.

__________ A bacillus is a bacterium with a slightly curved rod shape.

For each of the following statements that is true, write “true” in the blank. For each statement that is false, write the word(s) that should be substituted for the underlined word(s) to make the statement correct.

__________ A giant bacterium that is large enough to be seen without a microscope is Selenomonas.