Microbiology: Pre-Lab Quizzes (1-7) Flashcards

Mark all that have a prokaryotic cell type

Mark all that have a eukaryotic cell type

Mark all that are animals

Which gene is used to molecularly identify bacteria and archaea?

Which gene is used to molecularly identify Eukarya?

Which objective lens should be in position when placing a slide onto the stage or off the stage?

Total magnification power is calculated by multiplying the objective power in use by

Which part of the microscope can be changed to make a brightfield microscope a darkfield microscope?

Which part of the microscope can be changed to make a brightfield microscope a phase contrast microscope?

When converting the field of view from mm to μm, the mm measurement is multiplied by which value?

The simple staining method that uses one of the acidic dyes such as nigrosin or India ink

The simple staining method that uses a single acidic or basic stain

The differential staining method that uses crystal violet and safranin

The differential staining method that uses fuchsin and methylene blue

The differential staining method that uses malachite green and safranin

With negative staining, what color will bacterial colonies appear as?

With spore staining, endospores will appear as what color?

With acid-fast staining, Mycobacterium (acid-fast bacteria) will stain which color because of the presence of mycolic acid?

With Gram staining, Gram positive bacteria will stain as which color?

With Gram staining, Gram negative bacteria will stain as which color?

Agar, a molecule derived from red algae, is an important ingredient in which type of media?

This type of media contains one or more agents that inhibit the growth of certain microbes but not another

These media are designed to grow a broad spectrum of microbes that do not have special growth requirements

This type of media can grow several types of microbes but are designed to bring out visible differences among those microbes

This media is a general purpose media used for nonfastidious microbes including many bacteria and fungi

This selective and differential media is used to isolate enteric bacteria that hydrolyze urea

This media is a general purpose media used for bacteria

This media is a general purpose media used for fungi

This selective and differential media is used to isolate enteric bacteria that ferment lactose

This selective and differential media is used to isolate Staphylococcus

MSA is a selective medium for which bacteria because of the high salt concentration?

MSA will turn what color when the bacterium ferments the mannitol and produces acid?

EMB agar is selective for which bacteria?

EMB agar is selective because only bacteria that ferment this sugar produce colored colonies

Colonies of E. coli on EMB agar will produce what color colonies?

Colonies of Enterobacter aerogenes on EMB agar will produce what color colonies?

MacConkey's agar is selective for what group of bacteria?

Colonies of coliform bacteria on MacConkey's agar will produce what color colonies?

The ingredients of crystal violet and bile salts inhibit which group of bacteria?

If the nutrient agar is neither selective or differential, then the colonies of the different bacteria should look

Cell division for bacteria is known as

In this phase, the cells are adjusting to their environment

In this phase, the cells reach the maximum rate of cell division

In this phase, the cells will stop growing or grow very slowly

In this phase, limiting factors intensify becoming detrimental to any cell growth

Generation time should be measured during which phase?

A dilution of 1:10,000,000 is equivalent to 10 to which exponent?

A dilution of 1:1,000,000 is equivalent to 10 to which exponent?

When plating out a serial dilution series, which solution would have the fewest colony forming units?

An increase in optical density or absorbance indicates _______ microbial organisms

Bacteria that must grow in oxygen because their metabolism requires oxygen

Bacteria that have a flexible metabolism for oxygen conditions

Bacteria that cannot grow in an oxygenated environment

Many bacteria pathogens have an optimal growth between 35°C and 40°C, these are classified as

Which bacteria's colonies change color from white (higher temperature) to red (lower temperature)?

pH refers to what?

A cell that has fewer solutes than its environment

A cell that has the same solute concentration as its environment

A cell that has more solutes than its environment

A microbe such as Halobacterium salinarium thrives in high salt concentration environments is known as