Ch 6 Infection (Patho)

Bacteria that form irregular cluster of spheres

• bacilli

• diplococci

• staphylococci

• streptococci

What kind of environment is required for anaerobes

• dry

• acidic

• air temperature less than 61 degrees

• no oxygen

A bacterial endospore can

• be classified as an acid-fast bacterium

• exist in latent form inside a host cell

• reproduce rapidly

• survive high temperatures and a dry environment

The structure of an virus includes

• a cell wall and a membrane

• metabolic enzymes for replication

• a protein coat and either DNA and RNA

• a slime capsule and cilia

Method viruses use to replicate

• binary fission

• budding of a daughter cell from the parent viral cell

• producing spores

• using a host cell to produce and assemble components

How do antiviral drugs act?

• they interfere with cell wall development

• they decrease cell wall permeability

• they destroy new, immature viral particles

• they reduce the rate of viral replication

Which statement applies to yeasts?

• they are usually pathogenic

• they seldom contain a distinct nucleus

• they may cause opportunistic infections in the body

• they are normally not found in large numbers in resident flora

Which of the following applies to fungi reproduction

• budding

• extension of hyphae

• production of spores

• all of these apply

Which of the following is NOT a protozoan agent of disease>

• Plasmodium vivax

• Trichomonas vaginalis

• Tinea pedis

• Entamoeba histolytica

Which of the following is a characteristic of rickettsia?

• very small, gram negative intracellular microbe

• it exists in 3 forms

• it is sexually transmitted

• it reproduces by budding