Microbiology Flashcards
(131 cards)
Ascospores
The sexual spore of Ascomycetes
Bacilli
Rod-shaped bacteria
Basidiospores
The sexual spore of basidiomycetes
Capnophilic
An organism that required high levels of carbon dioxide for growth or for the enhancement of growth
Cocci
Bacteria with a round shape
Conidia
An asexual fungal spore that is deciduous and formed by budding ir splitting off from the summit of a conidiophore
Endospores
A dormant form of bacterium
Intracellular refractile bodies that are resistant to heat, desiccation, chemicals, and radiation
Formed by some bacteria when environmental conditions are poor
Facultative anaerobes
Bacteria that do not require oxygen for metabolism but that can survive in the presence of oxygen
Fastidious microbes
Bacterial species with complex growth or nutritional requirements
Flagella
Long, thin, helical structures that function in cell motility
Hyphae
The body of a fungus that is created as a result of the linear arrangements of cells and that forms multicellular or multinucleate growth
Mesophiles
Organisms with optimal growth temps between 25°C and 40°C
Microaerophilic
An organism that requires oxygen for growth at a level that is less than that found in air
Mycelium
Branching web made up of hyphae
Obligate aerobes
Bacteria that require oxygen to survive
Obligate anaerobes
Bacteria that are killed in the presence of oxygen or those with growth that is inhibited in the presence of oxygen
Prokaryotic
Organisms whose cells lack a nucleus and other organelles
Psychrophiles
Organisms that demonstrate optimal growth at cold temperatures (between 15°C and 20°C)
Spirochetes
Any bacterium genus Spirochaeta that is mobile and spiral-shaped with flexible filaments
Thermophiles
Organisms that undergo optimal growth at elevated temperatures
Yeast
Any unicellular (usually oval) nucleated fungus that reproduces by budding
Zygospores
The spores that result from the conjugation of 2 isogametes as occurs with certain fungi and algae
Describe general characteristics of bacteria
Prokaryotic
Have specific requirements for temp, pH, oxygen tension, and nutrition
Methods of identification are based on criteria such as size, shape, arrangement, and chemical reactivity
Describe the general characteristics of fungi
Heterotrophs
Most are multicellular except for yeast
Eukaryotic
Have hyphae to help with food