Question 1

How are brightfield,darkfield,phase-contrast and fluorescence microscopy similar?

Accepted Answer

The answer of How are brightfield,darkfield,phase-contrast and fluorescence microscopy similar?...

Question 2

In 1884,Hans Christian Gram described a method of staining bacterial cells while not staining surrounding animal tissues.However,he thought that the staining method he developed was faulty because not all bacteria stained.In a letter to the editor of the journal in which Gram published his findings,write your response to Gram's concern.

Accepted Answer

The answer of In 1884,Hans Christian Gram described a method...

Question 3

You are working in a clinical laboratory and you need to examine an unstained urine sample for the presence of bacteria.What type of light microscope should you use to observe this specimen? Explain your answer.

Accepted Answer

The answer of You are working in a clinical laboratory...

Question 4

In 1877,Robert Koch thought preparing permanently stained slides would be valuable.Why was his assessment correct?

Accepted Answer

The answer of In 1877,Robert Koch thought preparing permanently stained...

Question 5

Compare and contrast the Gram stain and the acid-fast stain.

Accepted Answer

The answer of Compare and contrast the Gram stain and...

Quiz 3: Observing Microorganisms Through a Microscope

How are brightfield,darkfield,phase-contrast and fluorescence microscopy similar?

You are working in a clinical laboratory and you need to examine an unstained urine sample for the presence of bacteria.What type of light microscope should you use to observe this specimen? Explain your answer.

In 1877,Robert Koch thought preparing permanently stained slides would be valuable.Why was his assessment correct?

Compare and contrast the Gram stain and the acid-fast stain.