lecture exam 2 Flashcards
What is used in industrial microbiology to produce microbial products that are only synthesized during log phase growth?
chemostat
A microorganism grows in the lab on medium containing mineral salts but no organic compounds. The organism is likely to be
autotroph
A syndrome is a group of symptoms and signs that collectively characterize a particular disease
True
what uses inorganic molecules as electron donors
lithotroph
what is a carrier protein that transports two substances in the same direction across a membrane
symport
what kind of organism requires oxygen for growth
obligate aerobic
ATP is expended in which of the following processes
both active transport and group translocation
aerosols may be involved in ______ transmission of pathogen
droplet
an organism that produces catalase enzyme is protected from the harmful effects of
peroxide anion
bacterial ________ are sites of metabolite storage
inclusions
diseases that are induced by modern medical procedures are referred to as ____________ infections
iatrogenic
endocytosis and exocytosis are means of transport used by
eukaryotes
eukaryotic cells use a process known as ___________ to obtain liquids from their enviornment
pinocytosis
human pathogens are classified as
mesophiles
mutualiam is a relationship
benefits for both members and both parties cannot live without the other
protein synthesis occurs in the
ribosome
the bacterium that causes tuberculosis can be expelled from the lungs by cough and remain viable in the air for an hour or more. what type of transmission will occur
airborne
the degree to which a microbe is able to cause disease is known as its
virulence
binary fission steps
dna replicated, cell doubles in size, cell forms septum, cell seperates from offpsrings
the fungus pneumocystis jiroveci is found in the lungs of most people in low numbers, but in immunocompromised people it overgrows, resulting in severe respiratory problems. The fungus is described as
both resident microbiota and opportunistic pathogen
the only effective way to store bacterial cultures for short periods of time is to arrest their metabolism by freezing
false
which of the following is a sign of disease?
fever
which of the following is an example of an exotoxin?
neurotoxin
what is the correct sequence of a disease process?
incubation, prodromal period, illness, decline, convalescecnce
which of the following organisms would be most likely to contaminate a jar of pickles?
acidophile
which of the following processes requires a carrier protein
both facilitated diffusion and active transport
which of the following statements about endoplasmic reticulum is correct
the ER is a transport system within the cytoplasm
