CH 1-2
Koch's postulates are criteria used to establish that:
What is a specific microbe is the cause of a specific disease?
A sputum sample is ordered for microbial analysis in order to rule out the diagnosis of tuberculosis. Suspecting Mycobacterium tuberculosis may be the pathogen, the Microbiology Lab will perform which stain on the sample:
What is an acid fast stain?
Satellite viruses are:
What are dependent on other viruses for replication?
In general, most DNA viruses multiply in the host cell's _____, while most RNA viruses multiply in the host cell's cytoplasm.
What is the nucleus?
Membrane bound sacs containing fluids or solid particles to be digested, excreted, or stored.
What are vacuoles?
Lipid group that serves as storage for fats and oils:
What are triglycerides?
A microbiologist makes a fixed smear of bacterial cells and stains them with Loeffler's methylene blue. All the cells appear blue under the oil lens. This is an example of:
What is simple staining?
Viruses that infect bacteria are specifically called:
What are bacteriophages?
Peptidoglycan is a unique macromolecule found in bacterial:
What are cell walls?
Viruses attach to their hosts by way of:
What are host glycoproteins?
A pure culture contains:
What is only one species of microorganism?
Plasmids:
What is are often the site of pathogenic genes?
Flagella at both poles:
What is amphitrichous?
Calcium is required for bacteria because it:
What is stabilizes the cell wall?
Two functions of bacterial appendages:
What are attachment and motility?
Agar is an important component of media because:
What is agar provides a solid surface for bacterial growth?
Outermost layer that comes into direct contact with the environment and usually is composed of polysaccharides and appears as a network of fibers, a slime layer, or a capsule:
What is the glycocalyx?
Site for most ATP synthesis in prokaryotic cells:
What is the cell membrane?
Bacteria move in response to chemical signals:
What is chemotaxis?
The most immediate result of destruction of a cell's ribosomes would be:
What is protein synthesis would stop?
A microbiologist inoculates Staphylococcus epidermidis and Escherichia coli into a culture medium. Following incubation, only the E. coli grows in the culture. The most likely explanation is that the:
What is the culture medium must be selective?
Viruses with positive sense RNA contain the correct message for translation, while viruses with _____ sense RNA must first be converted into a correct message.
What is negative?
Term autotroph refers to an organism that:
What is uses CO2 for it's carbon source?
Creutzfeld-Jacob disease is:
What is a spongiform encephalopathy of humans?
An important mineral ion of the cytochrome pigments of cellular respiration:
What is iron?