Which stain is used to distinguish differences between the cell walls of medically important bacteria? a. simple stain b. acridine orange stain c. Gram stain d. negative stain

How did Charcot define a sympton? A. as something directly observed by the examining physian B. as something experienced and reported by the patient C. something that that occurred in patients with various diseases D. as something that could be observed with a microscope

While using a microscope, when do you use immersion oil? a. When viewing a slide under the 100x objective lens b. Whenever you feel like it O. When viewing a slide under the 40x objective lens d. You should never use immersion oil

Select a statement that is not correct about bacterial fimbriae?   A. they protect the cell from dehydration   B. they are called attachment pili to distinguish them from the pili used to transfer DNA during conjugation   C. they are used to attach the cell to its substrate or to other prokaryote   D. they are hair-like projections that aid in attachment.

Suppose that you are viewing a Gram-stained field of red rods and purple cocci through the microscope. What can you conclude about your culture?

Short Answer Question: Imagine that you are a clinical microbiologist interested in Lyme Disease. This disease is caused by one species of bacterium, which is well-known and well-studied. You want to see if the bacteria that cause this disease may persist in the human body after people are treated for the disease. You have 30 blood samples from different people treated for Lyme Disease, and you want to determine which samples still have the bacteria that can cause Lyme Disease in them. Part 1: Describe one test (or one type of test) that could show in one step whether or not these samples contain the one species of bacterium that causes Lyme Disease. Explain why this test would be useful for you to detect the bacteria in these samples. Part 2: Describe another test that would NOT be able to quickly detect one species of bacterium in these samples. Explain why this test would not be a good choice for your goal of rapidly screening samples for one species of bacterium.