Flashcards in microbio lab final Deck (47):
eukaryotic, protist, simple nonflowering plant of a large group that includes the seaweeds and many single-celled forms. Algae contain chlorophyll but lack true stems, roots, leaves, and vascular tissue.
enzyme which hydrolyzes large starch molecules by breaking the bonds between the constituent glucose molecules.
stop the growth of microorganisms but are mild enough to be used on living tissue.
skills used to prevent contamination of a growing species in a laboratory. example- heating inoculating loop, flaming head of test tube.
a type of asexual reproduction. The nucleus divides and forms a daughter cell, eventually breaking away from the parent cell.
main protein in milk
enzyme that breaks down hydrogen peroxide into oxygen and water. Protects the cell from oxidative damage.
colony forming unit. A single bacterium can multiply and divide into a colony of many bacteria.
genetically identical cells
bacteria found in the intestinal tract of humans and animals. They are facultatively anaerobic, bacillus shaped, gram negative. They ferment lactose to produce gas.
a mass group of cells
substances that differ from each other
forms when milk sours, used for the basis of cheese.
a closed pouch of tissue containing fluid
waste or debris of any kind
same as a diluent, putting the factor into a large solution to dilute it.
the existence of two different forms of a species especially in the same population.
antimicrobial substances such as bleach and lysol. used to kill or stop the growth of pathogens on inanimate objects.
produced by the cell when its in extreme conditions to protect itself from heat and other harmful things.
science that deals with the transmission of disease.
has a nucleus. includes fungi, plants and animals.
An organism that cannot synthesize its own food and is dependent on complex organic substances for nutrition.
each of the branching filaments that make up the mycelium of a fungus.
the original patient that caused the spread of the disease, either genetic or not.
the process of looking at something bigger
a substance, typically an inorganic oxide, that combines with a dye or stain and thereby fixes it in a material, iodine on gram stain.
Because UV light causes mutations, it is referred to as a mutagen.
errors in DNA make it so it cannot be used for protein synthesis and cannot be replicated accurately.
the vegetative part of a fungus, consisting of a network of fine white filaments (hyphae)
infections acquired in hospitals and health care settings.
refers to objectives that can be changed with minimal or no refocusing.
no nucleus, example: bacteria. single celled, DNA floats freely.
enzymes that hydrolyze protein
any of a diverse group of eukaryotes of the kingdom protista, that are primarily unicellular. Include flagellates, ciliates, sporozoans, amoebas, and foraminifers.
childbed fever, it was the infection that was killing women following childbirth.
all the cells in a colony belong to the same species and strain of bacteria.
the source of the pathogen, where the microbe was first found, its original home.
the smallest distance between two points on a specimen that can still be distinguished as two separate entities. How much detail you can see. Ability to distinguish detail.
involves repeatedly mixing known amounts of source culture with sterilized liquid.
spectrum of activity
broad spectrum vs. narrow spectrum. The way to measure how susceptible/resistant a microbe is.
light with wavelengths less than that of violet light. Includes electromagnetic radiation that has a wavelength between 4 and 400 nm.
an organism, typically a biting insect or tick, that transmits a disease or parasite from one animal or plant to another.
the watery part of milk that remains after the formation of curds.
the distance between the slide and the lens of the microscope.
a microscopic fungus consisting of single oval cells that reproduce by budding, and are capable of converting sugar into alcohol and carbon dioxide.