BIO 205 (Microbiology) Questions and
answers with accurate rationales(PASSED)
Describe the theories of spontaneous generation and biogenesis. Which theory is
believed to be correct today? How was this theory proven? - answer Spontaneous
generation: The idea that life comes from non living material
Biogenesis: You have to have pre-existing life to produce new life.
What is a domain in taxonomy and how is it defined? - answer The three domains
are bacteria, archaea, and eukarya. 1. Bacteria: These are prokaryotic. There is
eubacteria, which means true bacteria. These are what cause human, animal, and
plant diseases. The true bacteria includes cyanobacteria, which is blue green algae
that we see around sometimes.
2. Archaea: Archarbacteria is also prokaryotic. Archaebacteria lacks a
peptidoglycan in a cell wall and they are unusual. They are not known to cause
bacteria in humans or animals. The different types of archaebacteria include
extremophiles, which is comethinf that can live in a very hot environment.
Extreme halophiles means salt lover or really high in salt concentration. An
example of this would be the dead sea. Extreme anaerobes means extremely high
in O2 toxicity or methane. An example of this would be methane from a cow.
3. Eukarya: This includes algae, fungi, protozoa, and viruses.
Taxonomy is basically common names versus scientific names. Common names
are a lot easier to remember and spell. It is also easier to speak. The problem with
common names is that there are different meanings for each thing. For example,
in America, a robin is a brown bird with a red breast but in Europe, even though it
is still called a robin, it is a completely different bird. This is where scientific names
come in. Even though they are harder to pronounce, they are more correct and
people won't get confused because there is a different scientific name for
everything.
, What is binomal nomenclature? Why use scientific names for organisms? - answer
We have to use scientific names so that people don't get confused with the names
when they mean two different things. Binomal Nomenclature is a system for
giving each organism a two-word latin name that consists of the genus name
followed by the species name
Write the complete, correct scientific name for 2 different bacteria- no
abbreviations - answer Staphylcoccus
Micrococcus
(Underlined of course)
What are Whitaker's 5 kingdoms? What organisms belong in each one? In which
domain do each kingdom fit? - answer kingdom monera, kingdom protista,
kingdom fungi, kingdom plantae, kingdom animalia
For each of the following bacterial structures provide a brief explanation of their
function...
1. Cell membrane
2. Fimbriae and Pili
3. Flagella and axial filaments
4. Bacterial chromosomes
5. Inclusion bodies
6. Ribosomes
7. Plasmid - answer 1. The cell membrane marks the cell boundary inside and
outside. It provides some protection. The cell membrane is semi-permeable,
answers with accurate rationales(PASSED)
Describe the theories of spontaneous generation and biogenesis. Which theory is
believed to be correct today? How was this theory proven? - answer Spontaneous
generation: The idea that life comes from non living material
Biogenesis: You have to have pre-existing life to produce new life.
What is a domain in taxonomy and how is it defined? - answer The three domains
are bacteria, archaea, and eukarya. 1. Bacteria: These are prokaryotic. There is
eubacteria, which means true bacteria. These are what cause human, animal, and
plant diseases. The true bacteria includes cyanobacteria, which is blue green algae
that we see around sometimes.
2. Archaea: Archarbacteria is also prokaryotic. Archaebacteria lacks a
peptidoglycan in a cell wall and they are unusual. They are not known to cause
bacteria in humans or animals. The different types of archaebacteria include
extremophiles, which is comethinf that can live in a very hot environment.
Extreme halophiles means salt lover or really high in salt concentration. An
example of this would be the dead sea. Extreme anaerobes means extremely high
in O2 toxicity or methane. An example of this would be methane from a cow.
3. Eukarya: This includes algae, fungi, protozoa, and viruses.
Taxonomy is basically common names versus scientific names. Common names
are a lot easier to remember and spell. It is also easier to speak. The problem with
common names is that there are different meanings for each thing. For example,
in America, a robin is a brown bird with a red breast but in Europe, even though it
is still called a robin, it is a completely different bird. This is where scientific names
come in. Even though they are harder to pronounce, they are more correct and
people won't get confused because there is a different scientific name for
everything.
, What is binomal nomenclature? Why use scientific names for organisms? - answer
We have to use scientific names so that people don't get confused with the names
when they mean two different things. Binomal Nomenclature is a system for
giving each organism a two-word latin name that consists of the genus name
followed by the species name
Write the complete, correct scientific name for 2 different bacteria- no
abbreviations - answer Staphylcoccus
Micrococcus
(Underlined of course)
What are Whitaker's 5 kingdoms? What organisms belong in each one? In which
domain do each kingdom fit? - answer kingdom monera, kingdom protista,
kingdom fungi, kingdom plantae, kingdom animalia
For each of the following bacterial structures provide a brief explanation of their
function...
1. Cell membrane
2. Fimbriae and Pili
3. Flagella and axial filaments
4. Bacterial chromosomes
5. Inclusion bodies
6. Ribosomes
7. Plasmid - answer 1. The cell membrane marks the cell boundary inside and
outside. It provides some protection. The cell membrane is semi-permeable,
