Introduction
Important People
Microscopy
100

Microbiology is the study of what?

Microbiology is the study of organisms that are too small to see with the unaided eye.

100

Who was the first person credited with accurately observing and describing microorganisms?

Antony Van Leeuwenhoek

100

As the resolution of a microscope gets better, does the numerical aperture increase or decrease?

increase

200

What are the three domains for the classification of an organism and what is a unique characteristic about each domain?

Bacteria

Unique Characteristic: cell walls contain peptidoglycan

Archaea

Unique Characteristic: have unique membrane lipids

Eukarya

Unique Characteristic: have a complex membrane-bound organelle structure

200

Who performed the final experiment to discredit spontaneous generation using swan neck flasks?

Louis Pasteur

200

What is the main problem of staining organisms for viewing under a microscope?

it often kills the organism

300

What is a virus composed of?

Protein and nucleic acid

300

Who discovered that heat-resistant bacteria could produce endospores?

Ferdinand Cohn

300

What microscope is most often used for studying microbial motility, determining the shape of living cells, and detecting bacterial structures such as endospores and inclusion bodies?

Phase-contrast

400

What is the distinguishing factor of Domain Archaea when compared to Domain Bacteria?

Unique ribosomal RNA sequences

400

True or false? A set of postulates used to determine a link between a particular microorganism and a particular disease were named after Louis Pasteur.

False. They were named after Robert Koch.

400

What type of microscopy stains specimens with fluorochrome?

fluoresence microscopy

500

What Eukaryotic organism is considered the "hunters and gatherers" of the microbial world?

protozoa

500

Is the postulate below the 1st, 2nd, 3rd, or 4th postulate of Koch's postulates?

"The same disease must result when the isolated microorganism is inoculated into a healthy host."

3rd
500

Why does electron microscopy have better resolution?

because the wavelength of a beam of electrons is very short