Microbiology Questions
Explore questions in the Microbiology category that you can ask Spark.E!
What part of the bacteria is used to attach it to surfaces and each other
describe a relationship that involves each bacteria type
What are the 3 methods to prevent or treat viral diseases
What intensifies the color of the bacterial and sticks to the cell wall?
Yes, it is a good strategy. If it's a receptor the cell must use, it doesn't have an alternative receptor to switch to, so even though that receptor makes the cell susceptible to infection, it has to put that target out there. This benefits the microbe.
They may suppress the production of MHC Class I protein, they may produce an MHC Class I mimic protein, AND they may prevent cell suicide.
(all correct)-competition for nutrients.-the physical blocking of organs.-the direct digestion of host tissue.-the host's immune response.
(all correct) -passing through the birth canal.-breastfeeding.-contact with mother's skin.-environment.
is expressed as ID50 AND is defined as the number of microbes necessary to ensure infection.
are found on pili, help bacteria attach to host cells, AND are proteins.
Even though there's a contaminating microbe present, so long as the original suspect microbe is also present, the disease should still manifest in test animals. It should also still be recoverable from test animals following infection. As such, there's really no consequence to using a contaminated culture.
is defined as the number of microbes needed to cause infection
Travel into and out of the United States has increased significantly. This has the potential to bring in many new pathogens that can cause new infections, even in otherwise healthy and immunocompetent individuals.
A primary pathogen is a microbe that is able to cause disease in an otherwise healthy individual, while an opportunistic pathogen is a microbe that causes disease only when introduced into an unusual location or into an immunocompromised host
involved in the first step of the infectious process AND often found at the tip of pili
(all correct)-the shedding of skin cells.-the movement of mucus by cilia.-peristalsis.-the flushing action of the urinary tract.
If it's a receptor the cell MUST use, it doesn't have a backup system in place to switch to-so, even though it makes it susceptible to infection, it HAS to put that target out there. This benefits the microbe.
preventing fusion of the lysosome with the phagosome AND lysing the phagosome.
number of infectious cells or virions encountered, the host's condition, and the growth rate of the pathogen
They are a type of exotoxin AND they bind to MHC class II antigen on T cells