Exam 4: Microscopy, Staining, and Classification

Which of the following classification methods relies on the morphology of organisms?

A cell's G + C ratio is associated with which of the following classification methods?

In the Gram stain procedure, iodine serves as a

All of the following are associated with different types of phase microscopes EXCEPT

Which of the following is(are) (a) magnifying lens(es)?

If you were trying to visualize flagella without staining, which microscope would you use?

Light rays that are in phase reinforce each other and produce a brighter image.

A(n) __________ microscope has a single ocular lens.

The limit of resolution of the unaided human eye is about __________ μm. (Be sure your answer is a numeral.)

The ability of a lens to gather light is referred to as its

Why are modern light microscopes better than the ones Leeuwenhoek used?

The microscope preferred for viewing living specimens is the __________ microscope.

Compare and contrast the light microscope with the electron microscope.

All of the following are types of light microscopes EXCEPT

You are a scientist studying the highly specific interactions of bacteriophages with their host cells when they first encounter the cell. Discuss what microscope(s) and preparation procedures you might use for this study.

A(n) __________ key is a guide that directs the user through a step-by-step process to identify a microbe.

A staining procedure that uses a single basic dye is called a(n) __________ stain.

Carl Woese and his colleagues proposed the __________, a taxon that contains multiple kingdoms.

Coating a specimen with a heavy metal is a step in preparing it for __________ microscopy.

A(n) __________ is a substance that binds to a dye and makes it less soluble.