Microbiology Rio Salado
Microbiology Rio Salado 1-7 Exam
Solved 100% Graded A+ 2025
List several ways in which microbes affect our lives. -Correct Answer ✔· Maintenance of
an ecological balance on earth
Produce foods and chemical necessary for the survival of humans
Maintain health present on your skin, in your mouth, and in your stomach
Recognize the system of scientific nomenclature that uses genus and specific epithet
names. -Correct Answer ✔Designed by Carolus Linnaeus each living organism is
assigned two names. The genus is the first name and is always capitalized. The species
name follows and is not capitalized.
Differentiate among the major characteristics of each group of microorganisms. -Correct
Answer ✔Most common shapes of bacteria: Bacillius (rodlike); Coccus (spherical or
ovoid); spiral (corkscrew or curved).
Archaea: -Correct Answer ✔consist of prokaryotic cells and don't have cell walls. They
live in extreme environments
Fungi: -Correct Answer ✔eukaryotic organisms have distinct nucleus. Can be
uni/multicellular
Protozoa: -Correct Answer ✔eukaryotic; unicellular. Most are parasites, names means
"first animals"
Algae: -Correct Answer ✔uni/multicellular that obtain nourishment through
photosynthesis.
Viruses: -Correct Answer ✔non cellular that are parasites of cells. Structurally simple,
difficult to kill. Smaller than bacteria.
All organisms are classified into three basic domains. What are the domains? -Correct
Answer ✔Bacteria, Archaea, and Eukarya.
Explain the importance of observations made by Hooke and van Leeuwenhoek. -
Correct Answer ✔Hooke discovery marked that beginning of cell theory - that all living
things are composed of cells
VAm Leeu - observation of live microorganisms using his simple microscope
Compare the theories of spontaneous generation and biogenesis. -Correct Answer
✔Spontaneous generation is that life could spontaneously generate
Biogenesis- the theory that living cells can arise only from preexisting living cells.
Microbiology Rio Salado
,Microbiology Rio Salado
Identify the contributions to microbiology made by Needham, Spallanzani, Virchow, and
Pasteur. -Correct Answer ✔Needham claimed that microorganisms could arise
spontaneously from heated nutrient broth
Spallanzani suggested needham results were due to microorganisms in the air that
were entering his broth.
Virchow biogenesis
Pateur experiments that formed the basis for aseptic technique.
Identify the importance of Koch's postulates. -Correct Answer ✔Proved that
microorganisms caused disease
Explain how Pasteur's work influenced Lister and Koch. -Correct Answer ✔Because he
participated in the development of germ theory (idea that microorganisms might cause
disease)Coined the term vaccine and that the protection from disease or recovery is
called immunity, and discovered that avirulent bacteria can be used to cure fowl cholera
Identify the importance of Jenner's work. -Correct Answer ✔He demonstrated that
inoculation with cowpox material provided humans with immunity from small pox
Identify the contributions to microbiology made by Ehrlich and Fleming. -Correct Answer
✔Ehrlich introduced an arsenic containing chemical called salvarsan to tx syphilis
Flemming observed that mold (penicillium) inhibited the growth of a bacterial culture.
Define bacteriology, mycology, parasitology, immunology, and virology. -Correct Answer
✔Bacteriology: the study of bacteria
Mycology: the study of fungi
Parasitology: the study of parasitic protozoa and worms
Immunology: the study of immunity
Virology: study of viruses
Explain the importance of recombinant DNA technology. -Correct Answer ✔bacteria can
produce substances such as proteins, vaccines, and enzymes
List at least four beneficial activities of microorganisms. -Correct Answer
✔Microorganisms degrade dead plants and animals and recycle chemical elements to
be used by living plants and animals. Bacteria are used to decompose organic matter in
sewage, and bioremediation processes use bacteria to clean up toxic wastes. Bacteria
are being used to control insect populations, and microbes are commonly used to make
products such as food and chemicals (called biotechnology).
List two examples of biotechnology that use genetic engineering and two examples that
do not. -Correct Answer ✔agriculture to protect plants from frost and insects and to
improve the shelf life of products
Microbiology Rio Salado
, Microbiology Rio Salado
Define normal microbiota and resistance. -Correct Answer ✔This distinction is a balance
between the disease-producing properties of a species of a microbe, and the host's
resistance (the ability to ward off diseases). When resistance is low in the host, an
infectious disease may occur, one in which pathogens invade a susceptible host.
Define and describe several infectious diseases. -Correct Answer ✔VRE, PNU, MRSA,
CDIFF
Describe emerging infectious diseases. -Correct Answer ✔HIV, AIDS, Ebola, West Nile
How did the theory of biogenesis lead the way for the germ theory of disease? -Correct
Answer ✔The theory gave light to a whole new world of studies. Without biogensis we
wouldnt have discovered vaccines, or this different diseases we know about now and
how to treat them.
In 1864, Lister observed that patients recovered completely from simple fractures, but
compound fractures had "disastrous consequences." He knew that the application of
phenol (carbolic acid) to fields in the town of Carlisle prevented cattle disease. In 1864,
Lister treated compound fractures with phenol, and his patients recovered without
complications. How was Lister influenced by Pasteur's work? Why was Koch's work still
needed? -Correct Answer ✔Pasteur was part of the discovery of disease caused by
microorganisms, Lister then developed an antibacterial to help control disease in
humans. Kochs work was still needed because he developed the structure for vaccines
with his Koch Postucles.
Describe two events, discoveries, or inventions that were probably the most significant
in the development of microbiology. Why are they considered significant to
microbiology? -Correct Answer ✔The discovery of microorganisims causing disease i
would think is the most important. Without this discovery everything else wouldnt have
been discovered. The second event would be the finding of Kock Postucles and being
able to vaccinate again disease. This is significant in microbiology because it shows that
microorganisms can be altered to prevent the disease they may have once started.
What is a microbe, and what are important contributions microorganisms make to the
earth's ecosystems? -Correct Answer ✔A microbes are microorganisms, they are the
oldest life form on earth. They are too small to see with the naked eye. They help the
ecosystem by keeping it in balance. Microbes are all around us, and without them
humans wouldn't be able to survive. They help protect our bodies from foreign microbes
that could cause disease, they also help with the breakdown of food, and keeping our
immunity strong.
The invention of the microscope would have to be one of the most significant
developments of microbiology. Without the microscope we would continue to not know
about this whole world of minute living cells and structures. The microscope allows us to
see thing unable to be seen with the naked eye.
Microbiology Rio Salado
Microbiology Rio Salado 1-7 Exam
Solved 100% Graded A+ 2025
List several ways in which microbes affect our lives. -Correct Answer ✔· Maintenance of
an ecological balance on earth
Produce foods and chemical necessary for the survival of humans
Maintain health present on your skin, in your mouth, and in your stomach
Recognize the system of scientific nomenclature that uses genus and specific epithet
names. -Correct Answer ✔Designed by Carolus Linnaeus each living organism is
assigned two names. The genus is the first name and is always capitalized. The species
name follows and is not capitalized.
Differentiate among the major characteristics of each group of microorganisms. -Correct
Answer ✔Most common shapes of bacteria: Bacillius (rodlike); Coccus (spherical or
ovoid); spiral (corkscrew or curved).
Archaea: -Correct Answer ✔consist of prokaryotic cells and don't have cell walls. They
live in extreme environments
Fungi: -Correct Answer ✔eukaryotic organisms have distinct nucleus. Can be
uni/multicellular
Protozoa: -Correct Answer ✔eukaryotic; unicellular. Most are parasites, names means
"first animals"
Algae: -Correct Answer ✔uni/multicellular that obtain nourishment through
photosynthesis.
Viruses: -Correct Answer ✔non cellular that are parasites of cells. Structurally simple,
difficult to kill. Smaller than bacteria.
All organisms are classified into three basic domains. What are the domains? -Correct
Answer ✔Bacteria, Archaea, and Eukarya.
Explain the importance of observations made by Hooke and van Leeuwenhoek. -
Correct Answer ✔Hooke discovery marked that beginning of cell theory - that all living
things are composed of cells
VAm Leeu - observation of live microorganisms using his simple microscope
Compare the theories of spontaneous generation and biogenesis. -Correct Answer
✔Spontaneous generation is that life could spontaneously generate
Biogenesis- the theory that living cells can arise only from preexisting living cells.
Microbiology Rio Salado
,Microbiology Rio Salado
Identify the contributions to microbiology made by Needham, Spallanzani, Virchow, and
Pasteur. -Correct Answer ✔Needham claimed that microorganisms could arise
spontaneously from heated nutrient broth
Spallanzani suggested needham results were due to microorganisms in the air that
were entering his broth.
Virchow biogenesis
Pateur experiments that formed the basis for aseptic technique.
Identify the importance of Koch's postulates. -Correct Answer ✔Proved that
microorganisms caused disease
Explain how Pasteur's work influenced Lister and Koch. -Correct Answer ✔Because he
participated in the development of germ theory (idea that microorganisms might cause
disease)Coined the term vaccine and that the protection from disease or recovery is
called immunity, and discovered that avirulent bacteria can be used to cure fowl cholera
Identify the importance of Jenner's work. -Correct Answer ✔He demonstrated that
inoculation with cowpox material provided humans with immunity from small pox
Identify the contributions to microbiology made by Ehrlich and Fleming. -Correct Answer
✔Ehrlich introduced an arsenic containing chemical called salvarsan to tx syphilis
Flemming observed that mold (penicillium) inhibited the growth of a bacterial culture.
Define bacteriology, mycology, parasitology, immunology, and virology. -Correct Answer
✔Bacteriology: the study of bacteria
Mycology: the study of fungi
Parasitology: the study of parasitic protozoa and worms
Immunology: the study of immunity
Virology: study of viruses
Explain the importance of recombinant DNA technology. -Correct Answer ✔bacteria can
produce substances such as proteins, vaccines, and enzymes
List at least four beneficial activities of microorganisms. -Correct Answer
✔Microorganisms degrade dead plants and animals and recycle chemical elements to
be used by living plants and animals. Bacteria are used to decompose organic matter in
sewage, and bioremediation processes use bacteria to clean up toxic wastes. Bacteria
are being used to control insect populations, and microbes are commonly used to make
products such as food and chemicals (called biotechnology).
List two examples of biotechnology that use genetic engineering and two examples that
do not. -Correct Answer ✔agriculture to protect plants from frost and insects and to
improve the shelf life of products
Microbiology Rio Salado
, Microbiology Rio Salado
Define normal microbiota and resistance. -Correct Answer ✔This distinction is a balance
between the disease-producing properties of a species of a microbe, and the host's
resistance (the ability to ward off diseases). When resistance is low in the host, an
infectious disease may occur, one in which pathogens invade a susceptible host.
Define and describe several infectious diseases. -Correct Answer ✔VRE, PNU, MRSA,
CDIFF
Describe emerging infectious diseases. -Correct Answer ✔HIV, AIDS, Ebola, West Nile
How did the theory of biogenesis lead the way for the germ theory of disease? -Correct
Answer ✔The theory gave light to a whole new world of studies. Without biogensis we
wouldnt have discovered vaccines, or this different diseases we know about now and
how to treat them.
In 1864, Lister observed that patients recovered completely from simple fractures, but
compound fractures had "disastrous consequences." He knew that the application of
phenol (carbolic acid) to fields in the town of Carlisle prevented cattle disease. In 1864,
Lister treated compound fractures with phenol, and his patients recovered without
complications. How was Lister influenced by Pasteur's work? Why was Koch's work still
needed? -Correct Answer ✔Pasteur was part of the discovery of disease caused by
microorganisms, Lister then developed an antibacterial to help control disease in
humans. Kochs work was still needed because he developed the structure for vaccines
with his Koch Postucles.
Describe two events, discoveries, or inventions that were probably the most significant
in the development of microbiology. Why are they considered significant to
microbiology? -Correct Answer ✔The discovery of microorganisims causing disease i
would think is the most important. Without this discovery everything else wouldnt have
been discovered. The second event would be the finding of Kock Postucles and being
able to vaccinate again disease. This is significant in microbiology because it shows that
microorganisms can be altered to prevent the disease they may have once started.
What is a microbe, and what are important contributions microorganisms make to the
earth's ecosystems? -Correct Answer ✔A microbes are microorganisms, they are the
oldest life form on earth. They are too small to see with the naked eye. They help the
ecosystem by keeping it in balance. Microbes are all around us, and without them
humans wouldn't be able to survive. They help protect our bodies from foreign microbes
that could cause disease, they also help with the breakdown of food, and keeping our
immunity strong.
The invention of the microscope would have to be one of the most significant
developments of microbiology. Without the microscope we would continue to not know
about this whole world of minute living cells and structures. The microscope allows us to
see thing unable to be seen with the naked eye.
Microbiology Rio Salado
