Microbio- micro tools flashcards

flash cards from class

Culture

To grow microorganisms means

medium

Nutrients for the growth of microbes is

inoculum

A small sample of microbes is

inoculation

The introduction of an inoculum into media to culture microbes is

incubator

A temperature-controlled chamber to encourage the multiplication of microbes is a

reducing medium

A substance that absorbs oxygen or slows the penetration of oxygen

Assay media

What media used by technologists to test the effectiveness of antimicrobial drugs?

Enumeration Media

What media is used by industrial and environmental microbiologists?

colony

A macroscopic cluster of cells appearing on a solid medium is called

real image

What image is formed by the objective on a microscope?

virtual image

What image is formed when the image is projected through the microscope body through the ocular lens?

refractive index

The degree of bending that light undergoes as it passes from one medium to another is called

iris diaphragm

What controls the amount of light coming into the condenser?

wet mount

What type of mount consists of a drop or two of culture placed on a slide and overlaid with a cover slip?

hanging drop

What type of mount uses a drop of culture placed on a slide, vaseline adhesive or sealant, and cover slip?

staining

Any procedure that applies colored chemicals (dyes) to specimens is

positive

Basic dyes have a _________ charge

negative

Acidic dyes have a ________ charge

positive

________ stain dye sticks to the specimen and gives it color

negative

_________ stain does not stick to the specimen but settles some distance from its outer boundary

simple stains

___________ only require a single dye and an uncomplicated procedure

differential stains

What uses a primary dye and a counterstain?

Christian Gram

Who developed the Gram Stain?

capsular staining

What type of stain is used to observe the microbial capsule?

flagellar staining

What type of stain is used to reveal filaments used by bacteria for locomotion?