Bio 271 Exam 2 Questions with Correct Answers
the lowest concentration of a chemical agent that prevents visible microbial growth is
called the
minimum inhibitory concentration
A blank blank antimicrobial works against a wide range of microbes
broad spectrum
viruses are considered blank blank parasites bc they cannot multiply w out a host
obligate intracellular
A chemical agent that kills bacteria is said to be
bactericidal
leads to the formation of thymine in microbial DNA
UV radiation
the use of chemical agents on living tissues is called
antisepsis
the phase of bacterial growth where cells divide at their maximum rate
exponential phase
a structured community of bacteria encased in a self produced polymeric matrix and
attached to a surface is Called a
biofilm
, the ability of bacteria to coordinate activity and gene expression based on population
size is called
Quorum sensing
process by which most bacteria reproduce
binary fission
a microbe that cannot grow in the presence of oxygen is an
obligate anaerobe
organisms that need high co2 levels for growth are called
Capnophiles
Microorganisms that use organic compounds for carbon and chemical compounds for
energy are
chemoheterotrophs
the process of virus replication and release that kills the host cell is called
cytolysis
the structure formed when a virus genome is intergated into a bacterial chromosome is
called
prophage
viruses with single stranded RNA genomes that can act as mRNA are called
positive sense RNA viruses
a fully formed virus particle is called
the lowest concentration of a chemical agent that prevents visible microbial growth is
called the
minimum inhibitory concentration
A blank blank antimicrobial works against a wide range of microbes
broad spectrum
viruses are considered blank blank parasites bc they cannot multiply w out a host
obligate intracellular
A chemical agent that kills bacteria is said to be
bactericidal
leads to the formation of thymine in microbial DNA
UV radiation
the use of chemical agents on living tissues is called
antisepsis
the phase of bacterial growth where cells divide at their maximum rate
exponential phase
a structured community of bacteria encased in a self produced polymeric matrix and
attached to a surface is Called a
biofilm
, the ability of bacteria to coordinate activity and gene expression based on population
size is called
Quorum sensing
process by which most bacteria reproduce
binary fission
a microbe that cannot grow in the presence of oxygen is an
obligate anaerobe
organisms that need high co2 levels for growth are called
Capnophiles
Microorganisms that use organic compounds for carbon and chemical compounds for
energy are
chemoheterotrophs
the process of virus replication and release that kills the host cell is called
cytolysis
the structure formed when a virus genome is intergated into a bacterial chromosome is
called
prophage
viruses with single stranded RNA genomes that can act as mRNA are called
positive sense RNA viruses
a fully formed virus particle is called
