Disease-causing microorganisms are called
the microorganisms that recycle nutrients by breaking down dead matter and wastes are called
the microorganisms that do not have a nucleus in their cells are called
when humans manipulate the genes of microorganisms the process is called
which of the following is not considered a microorganism
all microorganisms are best defined as organisms that
are too small to be seen with the unaided eye
which activity is an example of biotechnology
humans using yeast to make beer and wine
which of the following is a unique characteristic of viruses that distinguishes them from the other major groups of microorganisms
lack cell structure
the dutch merchant who made and used quality magnifying lenses to see and record microorganisms was
Anton van Leeuwenhoek
Pasteur used swan-neck flasks in his experiments to prove that
dust in air was a source of living microorganisms.
Which of the following is not a process in the scientific method?
belief in a preconceived idea
Spontaneous generation is the belief that
living things arise from nonliving matter
Koch's postulates are criteria used to establish that
a specific microbe is the cause of a specific disease.
Which of the following is a taxon that contains all the other taxa listed?
Which of the following is a scientific name?
Taxonomy does not involve
The smallest and most significant taxon is
The study of evolutionary relationships among organisms is called
A scientist studying the sequence of nucleotides in the rRNA of a
bacterial species is working
determining evolutionary relatedness.
A scientist discovers a new microbial species. It is a single-celled
eucaryote without cell walls.
In which kingdom will it likely be classified?
A scientist collects grass clippings to find the source of an
outbreak of tularemia is an
example of working in the field of
All of the following pertain to photosynthesis except
it occurs only in members of the kingdom Plantae
Organisms called parasites are
always harmful to their host.
The surgeon who advocated using disinfectants on hands and in the air prior to surgery was
Which scientist showed that anthrax was caused by the bacterium, Bacillus anthracis?
Select the correct descending taxonomic hierarchy (left to right):
family, genus, species
When assigning a scientific name to an organism
both genus and species names are italicized or underlined.
The scientist/s that proposed organisms be assigned to one of 3 domains is/are
Carl Woese and George Fox.
In Whittaker's system, the protozoa and algae are classified in the kingdom
Which kingdom does not contain any eukaryotes?
Which of the following are the main decomposers of the earth?
bacteria and fungi
The most common infectious cause of death worldwide is
Which of the following diseases is transmitted by mosquitoes?
All of the following are correct about prokaryotes except
they have organelles
All of the following contribute to the rise of emerging diseases except
the decrease in drug resistant bacteria.
Which scientist discovered heat resistant bacterial spores?
Which of the following is the correct way to write the scientific name of this bacterium?
Where are you most likely to find bacteria belonging to the domain Archaea?
in a hot spring
When microbes are introduced into the environment to restore stability, the process is called
Which of the following diseases probably involves microbial infection?
All of the choices are correct
Members of the same species share many more characteristics compared
to those shared by
members of the same kingdom.
Viruses are not classified in any of Whittaker's 5 kingdoms.
Members of the kingdom Fungi are photosynthetic.
A scientist studying helminths is working with bacteria.
The fossil record has established that prokaryotes existed on earth
for approximately 2 billion
years before eukaryotes appeared.
It has been over 25 years since a new infectious disease has emerged in the world.
The term sterile means free of all life forms.
All microorganisms are parasites.
During a scientific experiment, the control group is used to directly
test or measure the
consequences of a variable in the study.
The scientific method involves formulating a tentative explanation,
called the hypothesis, to
account for what has been observed or measured.
Once an organism is assigned to a particular taxonomic hierarchy, it
is permanent and cannot
A hypothesis must be tested before it can be considered a theory.
The names of the three proposed Domains are: Bacteria, Protista, Eukarya.
One distinguishing characteristic of the archaebacteria is that they
live in extreme
His experimentation led to the explanation of heat-stabile and
heat-labile organisms and the
discovery of endospores.
Who established the criteria for identifying which specific organism
caused a specific
Which group of organisms is studied in the field of microbiology?
All of the above are studied
This is present in eukaryotic but not in prokaryotic cells
Which of the following is not true of eucaryotic cells?
The chromosome is a single continuous thread.
A common bacterial agent of sore throats is Streptococcus pyogenes; the genus name is
Pasteur and Tyndall experiments proved
microbes are transmitted via dust particles
The level or organization that includes viruses
The level of organization that could be appropriately exemplified by Bacillus subtilis
Discovered penicillin, which was the first antibiotic, in l929.
Genetic changes that were not present in the parent but enables
survival of the offspring best
Multicellular parasites that have a complex life cycle and may cause diseases in man
Dutch spectacle makers who are credited with the discovery of the
microscope, about 1590
Prokaryotic cell division occurs via
The type of cell that has a pronounced absence of membrane bound organelles
Of the following which is not true of viruses?
all of the above are true
Prokaryotic cells may best be described as
cells that have a pronounced absence of organelles
In which level of organization would viruses exist?
The necessity for elaborate sterilization procedures in hospitals and canneries is due to
Which of Koch’s postulates states that a particular microbe should be present in every case of that disease?
Which domain includes eukaryotic cells?
The following are parts of the scientific method except
Abiogenesis was finally disproved by the work of
A clear association between contamination and infection from
maternity wards with regards to
child birth fever was demonstrated by:
Protozoa belong to the Kingdom:
The agent which causes AIDS is a _____.
A minute, highly durable body which develops in some bacteria that is
very resistant to the
This is the study of the systems for disease resistance
This is is the process of an organism coping its with environment
This is the disproven idea that life arose from nonliving matter
Who was the virologist that developed the first polio vaccine?
What is number 2 of Koch's Postulates?
isolate the microbe and grow in a pure culture in the lab
The smallest taxonomic group in the taxonomic classification scheme is
Although impossible to prove, when using the scientific method, ____
is a scientific theme
that attempts to explain biological observed data or information. This is step 2 in the scientific
In which level of organization do bacteria exist?
dealt final defeat to theory of abiogenesis
Discovered cells under a microscope
Used a recombinant DNA technique to place plant and
animal genes in the bacteria E. coli
Discovered the first antibiotic, penicillin
Linked mosquitoes to the spread of Yellow Fever
Built the earliest known compound microscope
One of the first in the first to use antiseptics in surgery
Developed and used four postulates which were used in
sequence to prove that a certain microorganism caused
a certain disease
Crystaliized and studied the tobacco mosaic virus
Discovered the causative agent of Rocky Mountain
Discovered heat stability is linked to the presence of
Developed the rabies vaccine and the anthrax vaccine
Devised a model of the structure of DNA
Watson and Crick
Developed the first oral polio vaccine
Developed recombinant techniques and developed the
field of modern molecular genetics
Developed the vaccine for small pox
Helped disprove the theory of spontaneous generation
with his famous meat experiment
Discovered the causative agent of anthrax
Developed the handwashing technique
He is sometimes called the "Father of Bacteriology and
Anton van Leeuwenhoek,
Cloned the first DNA using plasmids