Microbiology: An Evolving Science 5th Edition by Joan L. Slonczewski test bank
Their genomes could be composed of DNA or RNA.
They were discovered by Wendell Stanley.
Some viral particles, when pure enough, can be crystallized.
You have isolated a bacterium that you believe to be the causative agent of a new disease in frogs. How would you test the third of Koch’s postulates?
Determine the shape of the bacterial cells.
Inject the bacteria into a healthy frog.
Isolate the bacterium from a sick frog.
Show that the bacterium is not present in healthy frogs.
Grow a pure culture of the bacterium outside the frog.
How did Sergei Winogradsky grow lithotrophs?
enrichment culture
organic media
pure culture
endosymbiosis
chain of infection
Organisms that live symbiotically inside a larger organism are known as
organelles.
cyanobacteria.
mitochondria.
endosymbionts.
chloroplasts.
The gut microbiome of humans
allows us to digest cellulose.
includes thousands of species of microbes that are essential to health and well-being.
provides fixed nitrogen.
produces light.
do not help to regulate the immune system
Carl Woese’s discovery replaced the classification scheme of five kingdoms with a scheme of three
phyla.
domains.
classes.
orders.
genera.
The gene expression machinery of archaea is MOST similar to
monera.
prokaryotes.
bacteria.
eukaryotes.
mitochondria.
In the three-domain model, the bacterial ancestor of mitochondria derives from ancient
fungi.
cyanobacteria.
proteobacteria.
archaea.
protists.
Which of the following organelles are thought to be of prokaryotic origin?
smooth endoplasmic reticulum
rough endoplasmic reticulum
nucleus
chloroplast and mitochondria
Golgi apparatus
In the three-domain model, the bacterial ancestor of chloroplasts derives from ancient
fungi.
cyanobacteria.
proteobacteria.
archaea.
protists.
Which commonly used microbial classification advancement led to the tree proposed by Carl Woese in 1977?
comparative genomics
microscopy
X-ray diffraction
protein sequencing
16S rRNA sequencing
Electron microscopes use what to focus the beam of electrons?
electromagnets
ocular
light rays
X-ray diffraction
glass
Peter Mitchell and Jennifer Moyle proposed the ________ theory of the electron transport chain in the 1960s.
germplasm
evolution
chemiosmotic
DNA synthesis
polymerase chain reaction
The X-ray diffraction studies by which of the following scientists concluded that DNA was a double helix?
James Watson
Rosalind Franklin
Francis Crick
Maurice Wilkins
Kary Mullis
What feature of bacteria facilitated the DNA revolution in the 1970s?
They are very small.
They readily recombine DNA.
They have very large genomes.
All their genes were known.
They do not cause disease.
This scientist first discovered the process of transformation.
Francis Crick
Robert Koch
Edward Jenner
Louis Pasteur
Frederick Griffith
Taq polymerase forms the basis of a technique for
comparative genomics.
recombinant DNA.
X-ray diffraction.
DNA amplification.
protein synthesis.
In 1975, scientists held a conference at Asilomar to regulate and restrict the field of
recombinant DNA.
comparative genomics.
DNA sequencing.
DNA amplification.
forensic microbiology.
The study of and cause of disease in humans, animals, and plants is called