microbiology chpt 18 Flashcards
the study of microorganism is
microbiology
disease-producing microorganisms are termed
pathogenic
non pathogenic are
non-disease producing organisms
virulent diseases are capable of
causing a serious disease
aerobes
require oxygen to grow
bacteria that grow in the absence of oxygen and are destroyed by oxygen are
anaerobes
organisms that grow in the presence or absence of oxygen are
facultative anaerobes
a single celled microscopic animal without a rigid cell wall
protozoa `
a provirus is what
hidden virus during the latency period
very tiny infectious agents that do not contain DNA or RNA
prions
some bacteria can change into a highly resistant form called a
spore
Creutzfeldt-Jakob disease (CJD) is a rare
chronic brain disease with onset in middle to late life
oral candidiasis
yeast (fungal) infection of the oral mucosa
HBV is a virus necessary for confection with
HDV
HAV is a virus spread by what route
fecal-oral
MRSA is a bacterium that is resistant to
some antibiotics
the father of microbiology
Joseph Lister
who is credited for discovering the rabies vaccine
Louis Pasteur
the name of staining process for separating bacteria is
gram test
bacterial shapes include
spherical (cocci), rod (bacilli), spirochetes
bacteria are considered to be “gram-positive” when
they appear dark purple under microscope
bacteria are considered “gram negative” when
colourless or nearly invisible under microscope
capsules are
a protective layer covering cell wall (increases bacterias ability to resist body defence mechanism)
true or false: viruses are smaller than bacteria but can cause fatal disease
true
