Microbiology Rio Salado 1-7 exam | Questions and
100%Verified Solutions
Explain the importance of recombinant DNA technology. - ANSWER -bacteria can
produce substances such as proteins, vaccines, and enzymes
List at least four beneficial activities of microorganisms. - 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. - ANSWER -agriculture to protect plants from frost and
insects and to improve the shelf life of products
Define normal microbiota and resistance. - 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. - ANSWER -VRE, PNU, MRSA,
CDIFF
Describe emerging infectious diseases. - ANSWER -HIV, AIDS, Ebola, West Nile
How did the theory of biogenesis lead the way for the germ theory of disease? -
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? - 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? - 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? - 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.
The second significant event would be the discovery of pasteurization. Not only
has it allowed beer and wine to travel and not spoil so quickly, it led to the germ
theory of disease.
, How did the theory of biogenesis lead the way for the germ theory of disease? -
ANSWER -The theory of biogenesis came first and started the golden age of
microbiology. Through the process of trying to prove that biogenesis was correct
Louis Pasteur discovered that microorganisms are the reason why things spoil or
turn bad. These findings led to the theory of germ disease which states
microorganisms may be the reason for disease.
What is a microbe, and what are important contributions microorganisms make to
the earth's ecosystems? - ANSWER -Microbes are minute living things that
individually are usually too small to be seen with the unaided eye. Microbes help
the ecosystem work. They are used as the basic foundations of food chains in the
oceans, lakes and rivers. They are responsible for digestion and synthesis of
vitamins in the human intestines.
The antibiotic (antimicrobial) amphotericin B causes leaks in cells by combining
with sterols in the plasma membrane. Would you expect to use amphotericin B
against a bacterial infection? A fungal infection? Offer a reason why amphotericin
B has severe side effects in humans. - ANSWER -Bacterial cell membranes
generally do not contain sterols, therefore the
amphotericin B treatment of bacterial infection would not be effective. Since
both the human and fungal cell membranes contain sterols amphotericin B
damages the human cells as well which contributes to its toxicity.
Archaea are often found - ANSWER -in extreme environments
Many algae have cell walls composed of - ANSWER -cellulose
In the name Escherichia coli, coli is the - ANSWER -specific epithet
which of the following is not a domain in the three- domain system - ANSWER -
Animalia
The domains are: archaea, bacteria, eukarya
100%Verified Solutions
Explain the importance of recombinant DNA technology. - ANSWER -bacteria can
produce substances such as proteins, vaccines, and enzymes
List at least four beneficial activities of microorganisms. - 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. - ANSWER -agriculture to protect plants from frost and
insects and to improve the shelf life of products
Define normal microbiota and resistance. - 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. - ANSWER -VRE, PNU, MRSA,
CDIFF
Describe emerging infectious diseases. - ANSWER -HIV, AIDS, Ebola, West Nile
How did the theory of biogenesis lead the way for the germ theory of disease? -
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? - 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? - 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? - 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.
The second significant event would be the discovery of pasteurization. Not only
has it allowed beer and wine to travel and not spoil so quickly, it led to the germ
theory of disease.
, How did the theory of biogenesis lead the way for the germ theory of disease? -
ANSWER -The theory of biogenesis came first and started the golden age of
microbiology. Through the process of trying to prove that biogenesis was correct
Louis Pasteur discovered that microorganisms are the reason why things spoil or
turn bad. These findings led to the theory of germ disease which states
microorganisms may be the reason for disease.
What is a microbe, and what are important contributions microorganisms make to
the earth's ecosystems? - ANSWER -Microbes are minute living things that
individually are usually too small to be seen with the unaided eye. Microbes help
the ecosystem work. They are used as the basic foundations of food chains in the
oceans, lakes and rivers. They are responsible for digestion and synthesis of
vitamins in the human intestines.
The antibiotic (antimicrobial) amphotericin B causes leaks in cells by combining
with sterols in the plasma membrane. Would you expect to use amphotericin B
against a bacterial infection? A fungal infection? Offer a reason why amphotericin
B has severe side effects in humans. - ANSWER -Bacterial cell membranes
generally do not contain sterols, therefore the
amphotericin B treatment of bacterial infection would not be effective. Since
both the human and fungal cell membranes contain sterols amphotericin B
damages the human cells as well which contributes to its toxicity.
Archaea are often found - ANSWER -in extreme environments
Many algae have cell walls composed of - ANSWER -cellulose
In the name Escherichia coli, coli is the - ANSWER -specific epithet
which of the following is not a domain in the three- domain system - ANSWER -
Animalia
The domains are: archaea, bacteria, eukarya
