Deck 17: Domain Kingdom Bacteria, Domain Kingdom Archaea, and Viruses

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Question
An organism that has no nuclear envelope and divides by fission would be a

A) protist.
B) fungus.
C) prokaryote.
D) plant.
E) Both fungus and prokaryote are correct.
Use Space or
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Question
Small circular DNA molecules present in bacteria are called

A) chromatids.
B) endospores.
C) plasmids.
D) pili.
E) microbiologists.
Question
Which disease bacteria usually gain access to their victims through contamination of food and drink?

A) chlamydias
B) cholera bacteria
C) syphilis
D) tetanus bacteria
E) bubonic plague bacteria
Question
Bacteria that are more or less spherical in shape are generally called

A) cocci.
B) bacilli.
C) spherilli.
D) spirilli.
E) globilli.
Question
True bacteria may get their nutrition from ________.

A) nonliving organic matter (saprobes)
B) other living organisms (parasites)
C) from sunlight (autotrophs)
D) from inorganic chemicals (chemoautotrophs)
E) All these modes of nutrition are used by some eubacteria species.
Question
An association of two dissimilar organisms that benefits both organisms is called ________.

A) fraternization
B) conjugality
C) heterosexuality
D) parsitism
E) mutualism
Question
Approximately ________ of bacteria are useful to humans, or harmless.

A) 10%
B) 20%
C) 50%
D) 70%
E) 90%
Question
Corkscrew-shaped bacteria such as Spirulina are classified as ________.

A) filaments
B) cocci
C) spirilla
D) bacilli
E) mat-forming
Question
Which of the following features is found only in bacteria?

A) lack of membrane bound compartments within the protoplast
B) cells with a distinct nucleus
C) chloroplasts in a variety of shapes and sizes
D) capacity to reproduce only within other living cells
E) capacity to undergo both mitosis and meiosis
Question
Which of the following is NOT a form of genetic recombination occurring in bacteria?

A) conjugation
B) oogamy
C) transformation
D) transduction
E) All of these answers are correct.
Question
________, a disease once controlled by antibiotics, is spreading and once again becoming a significant threat worldwide because of the evolution of resistance to multiple antibiotics that once controlled it.

A) Bubonic plague
B) Tuberculosis (TB)
C) Leprosy
D) H1N1 influenza
E) Genital herpes
Question
Which of the following is NOT a human disease caused by bacteria?

A) anthrax
B) gonorrhea
C) chicken pox
D) botulism
E) bubonic plague
Question
Which of the following possessed by eukaryotic cells is/are NOT found in prokaryotic cells?

A) mitochondria
B) ribosomes
C) membranes
D) pigments
E) DNA
Question
Under ideal conditions of moisture, food supply, and temperature a bacterium may undergo fission every

A) two hours.
B) two minutes.
C) 10 to 20 minutes.
D) two days.
E) 30 to 60 minutes.
Question
Bacteria may be classified by

A) Gram staining.
B) shape.
C) colored pigments.
D) size.
E) Both Gram staining and shape are correct
Question
Some genetic recombination in bacteria occurs as a result of fragments of DNA being carried from one cell to another by viruses. This process is called

A) conjugation.
B) plasmid synthesis.
C) transformation.
D) viral busing.
E) transduction.
Question
A bacillus bacterium would be in the shape of a

A) sphere.
B) corkscrew.
C) rod.
D) filamentous chain.
E) letter "J".
Question
Which feature does NOT distinguish archaebacteria from eubacteria?

A) unique base sequences of their RNA molecules
B) lack of muramic acid in their cell walls
C) distinctive lipids
D) presence of ribosomes
E) their metabolism
Question
The bacterial structure formed by a single, very condensed, circular DNA molecule is called a

A) circuplasm.
B) a 70 S ribosome.
C) Offenhauser body.
D) schizoprotein.
E) a nucleoid.
Question
Which statement about Koch's postulates is INCORRECT?

A) Koch's postulates are a set of rules to identify the microorganism that causes a particular disease.
B) The microorganism that supposedly causes the disease must be present in all incidences of the disease.
C) If a microorganism is isolated and purified from a diseased individual and subsequently causes disease symptoms when injected into a healthy host, there is suggestive evidence that the microorganism causes the disease.
D) Isolation of a microorganism from a diseased individual is sufficient evidence for that organism being the causative agent of the disease.
E) The final step of Koch's rules is to compare the original pure culture with the culture isolated from the experimentally injected host..
Question
Bacteria that are capable of carrying on photosynthesis are

A) autotrophic.
B) heterotrophic.
C) parasitic.
D) saprobic.
E) nitrate synthesizers.
Question
The red pigment that enables salt bacteria to carry on a simple form of photosynthesis is

A) anthocyanin.
B) carotene.
C) phycocyanin.
D) phycoerythrin.
E) bacterial rhodopsin.
Question
Which of the following bacteria usually has an exceptionally acidic (often less than pH 2) environment?

A) blue-green bacteria
B) hydrogen bacteria
C) sulpholobus bacteria
D) iron bacteria
E) chlamydias
Question
Which of the following bacteria are NOT autotrophic?

A) saprobic bacteria
B) prochlorobacteria
C) purple nonsulphur bacteria
D) purple sulphur bacteria
E) green sulphur bacteria
Question
Which of the following uses is NOT a product of bacterial activity?

A) Limburger and Brie cheese
B) buttermilk
C) acetone
D) tanned leather
E) vanilla flavoring
Question
The scientist who became known for his investigations of tuberculosis and anthrax, and who formulated "postulates" for proving that a particular microorganism is the cause of a particular disease was

A) Edward Jenner.
B) Benjamin Jesty.
C) Christian Gram.
D) Robert Koch.
E) Charles Chamberland.
Question
Which of the following is NOT similar to chlorophyll a of higher plants?

A) chlorophyll b
B) bacteriochlorophyll
C) chlorophyll c
D) chlorobium chlorophyll
E) chlorophyll d
Question
________ are special cells that are able to fix nitrogen and serve as fragmentation sites for certain types of bacteria.

A) Filaments
B) Cocci
C) Akinetes
D) Heterocysts
E) Parenchyma
Question
Which of the following groups is, as a whole, associated with extreme environments, including hot springs, highly salinity, and anaerobic conditions?

A) All of the true bacteria.
B) Cyanobacteria
C) Protochlorobacteria
D) Archaebacteria
E) Protists
Question
All of the following are features of the blue-green bacteria EXCEPT:

A) ability to both fix nitrogen and produce oxygen.
B) are autotrophs that produce both sugars and oxygen using light energy.
C) contain chlorophyll a and the phycobilins (phycocyanin and phycoerythrin).
D) produce a nitrogenous food reserve called cyanophycin.
E) have chloroplasts similar to those of plants for photosynthesis.
Question
The microbiologist known for his research with archaebacteria and for proposing two different kingdoms for bacteria is

A) Christian Gram.
B) Robert Koch.
C) Richard A. Lewin.
D) George Papadapoulos.
E) Carl Woese.
Question
Photosynthetic, algal-like bacteria are

A) archaea.
B) cyanobacteria.
C) methanogens.
D) chlorophytes.
E) rickettsias.
Question
The bright green prokaryotic organisms associated with sea squirts are called

A) filterable viruses.
B) prochlorobacteria.
C) green sulphur bacteria.
D) rickettsias.
E) Koch's jewels.
Question
Thick-walled cells of Nostoc and Anabaena that can withstand freezing and other adverse conditions are called

A) heterocysts.
B) holdfasts.
C) akinetes.
D) bloom cells.
E) aplanospores.
Question
The methane bacteria derive their energy from the generation of methane gas from hydrogen and

A) carbon dioxide.
B) oxygen.
C) nitrogen.
D) water.
E) sulphur.
Question
"Will-o'-the wisps" (ignis fatuus) are associated with

A) purple sulphur bacteria.
B) green sulphur bacteria.
C) sulpholobus bacteria.
D) methane bacteria.
E) purple nonsulphur bacteria.
Question
Which of the following is NOT involved in the reproduction or survival of blue-green bacteria?

A) fission
B) heterocysts
C) akinetes
D) fusion of gametes
E) DNA
Question
Which of the following is NOT a group belonging to the archaebacteria?

A) methane bacteria
B) green sulphur bacteria
C) salt bacteria
D) sulpholobus bacteria
E) All of these answers are correct.
Question
Which of the following "useful" bacteria can be used to control Japanese beetles?

A) Bacillus thuringiensis
B) Bacillus thuringiensis var. israelensis
C) Bacillus popilliae
D) Staphylococcus spp.
E) Clostridium botulinum
Question
Which of the following is NOT associated with blue-green bacteria?

A) nitrogenous food reserve.
B) phycoerythrin
C) Golgi bodies
D) akinetes
E) phycocyanin
Question
Which of the following appears more promising than bacteria for the production of interferon?

A) viruses
B) algal cells
C) yeast cells
D) "sunbean" cells
E) All of these answers are correct.
Question
Bacteriophages are ________.

A) bacteria that cause Chagas disease
B) viruses that attack human cells
C) protozoans that infect red blood cells
D) harmless bacteria used in the production of vinegar
E) viruses that attach and kill bacteria
Question
Those few blue-green bacteria capable of movement achieve movement by means of amoebalike "crawling."
Question
Chalky, insoluble travertine deposits are precipitated by blue-green bacteria.
Question
When blue-green bacteria carry on photosynthesis, no carbohydrates are produced.
Question
Which of the following is NOT a virus?

A) HIV
B) bacteriophage
C) herpes
D) Epstein-Barr
E) None of these answers are correct
Question
Diseases such as rabies and polio are caused by ________, and can be prevented through ________.

A) bacteria; use of antibiotics
B) protozoans; use of antibiotics
C) viruses; use of antibiotics
D) viruses; vaccination
E) prions; vaccination
Question
Saprobic bacteria are primarily responsible for decay and recycling of organic matter in animal and plant remains and animal wastes.
Question
Bacillus thuringiensis is used to control a variety of plant-eating caterpillars (larvae).
Question
The exterior surface of a virus is usually ________.

A) an RNA molecule
B) a protein coat
C) the nucleic acid core
D) the envelope
E) a DNA molecule
Question
With the exception of the blue-green bacteria and photochlorobacteria, photosynthetic bacteria use either hydrogen sulfide or hydrogen of organic molecules and carbon dioxide produce carbohydrates without releasing oxygen.
Question
In modern classifications of viruses, which of the following is now used initially to separate them into two major groups?

A) size
B) the DNA or RNA in their cores
C) shape
D) the nature of the protein coat
E) the number of identical structural units in their cores
Question
No blue-green bacteria have flagella and therefore none is capable of movement.
Question
There are no known useful viruses.
Question
Which of the following is/are possessed by both bacteria and viruses?

A) cellular structure
B) DNA or RNA
C) a nucleus
D) chlorophyll
E) flagella for locomotion
Question
A virus that attacks a bacterium is called a/an

A) vector.
B) interferon.
C) bactovirus.
D) phage.
E) aggressoparticle.
Question
Cells of higher animals that are invaded by viruses produce a protein called

A) interferon.
B) cytochrome k.
C) viroamine.
D) phage.
E) fibril.
Question
Temperatures in a compost pile can become high enough to kill weed seeds.
Question
The toxins of tetanus and botulism bacteria are considerably more powerful than strychnine.
Question
Decomposed organic matter, especially plant matter, improves soil water holding capacity and soil structure but it isn't a very good fertilizer.
Question
Blue-green bacteria, as well as certain other bacteria, can fix nitrogen.
Question
Methane, salt, and sulpholobus bacteria have in common that they are members of the eubacteria.
Question
All viruses have at their core the nucleic acid DNA.
Question
Blue-green bacteria possess chlorophyll a, but not chlorophyll b.
Question
Chemoautotrophic bacteria obtain their energy through oxidation of reduced inorganic compounds such as NH3.
Question
Many bacteria are motile because they possess bacterial flagella.
Question
Viruses cannot be used to control other pests.
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Deck 17: Domain Kingdom Bacteria, Domain Kingdom Archaea, and Viruses
1
An organism that has no nuclear envelope and divides by fission would be a

A) protist.
B) fungus.
C) prokaryote.
D) plant.
E) Both fungus and prokaryote are correct.
C
2
Small circular DNA molecules present in bacteria are called

A) chromatids.
B) endospores.
C) plasmids.
D) pili.
E) microbiologists.
C
3
Which disease bacteria usually gain access to their victims through contamination of food and drink?

A) chlamydias
B) cholera bacteria
C) syphilis
D) tetanus bacteria
E) bubonic plague bacteria
B
4
Bacteria that are more or less spherical in shape are generally called

A) cocci.
B) bacilli.
C) spherilli.
D) spirilli.
E) globilli.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
5
True bacteria may get their nutrition from ________.

A) nonliving organic matter (saprobes)
B) other living organisms (parasites)
C) from sunlight (autotrophs)
D) from inorganic chemicals (chemoautotrophs)
E) All these modes of nutrition are used by some eubacteria species.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
6
An association of two dissimilar organisms that benefits both organisms is called ________.

A) fraternization
B) conjugality
C) heterosexuality
D) parsitism
E) mutualism
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
7
Approximately ________ of bacteria are useful to humans, or harmless.

A) 10%
B) 20%
C) 50%
D) 70%
E) 90%
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
8
Corkscrew-shaped bacteria such as Spirulina are classified as ________.

A) filaments
B) cocci
C) spirilla
D) bacilli
E) mat-forming
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
9
Which of the following features is found only in bacteria?

A) lack of membrane bound compartments within the protoplast
B) cells with a distinct nucleus
C) chloroplasts in a variety of shapes and sizes
D) capacity to reproduce only within other living cells
E) capacity to undergo both mitosis and meiosis
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
10
Which of the following is NOT a form of genetic recombination occurring in bacteria?

A) conjugation
B) oogamy
C) transformation
D) transduction
E) All of these answers are correct.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
11
________, a disease once controlled by antibiotics, is spreading and once again becoming a significant threat worldwide because of the evolution of resistance to multiple antibiotics that once controlled it.

A) Bubonic plague
B) Tuberculosis (TB)
C) Leprosy
D) H1N1 influenza
E) Genital herpes
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
12
Which of the following is NOT a human disease caused by bacteria?

A) anthrax
B) gonorrhea
C) chicken pox
D) botulism
E) bubonic plague
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
13
Which of the following possessed by eukaryotic cells is/are NOT found in prokaryotic cells?

A) mitochondria
B) ribosomes
C) membranes
D) pigments
E) DNA
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
14
Under ideal conditions of moisture, food supply, and temperature a bacterium may undergo fission every

A) two hours.
B) two minutes.
C) 10 to 20 minutes.
D) two days.
E) 30 to 60 minutes.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
15
Bacteria may be classified by

A) Gram staining.
B) shape.
C) colored pigments.
D) size.
E) Both Gram staining and shape are correct
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
16
Some genetic recombination in bacteria occurs as a result of fragments of DNA being carried from one cell to another by viruses. This process is called

A) conjugation.
B) plasmid synthesis.
C) transformation.
D) viral busing.
E) transduction.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
17
A bacillus bacterium would be in the shape of a

A) sphere.
B) corkscrew.
C) rod.
D) filamentous chain.
E) letter "J".
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
18
Which feature does NOT distinguish archaebacteria from eubacteria?

A) unique base sequences of their RNA molecules
B) lack of muramic acid in their cell walls
C) distinctive lipids
D) presence of ribosomes
E) their metabolism
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
19
The bacterial structure formed by a single, very condensed, circular DNA molecule is called a

A) circuplasm.
B) a 70 S ribosome.
C) Offenhauser body.
D) schizoprotein.
E) a nucleoid.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
20
Which statement about Koch's postulates is INCORRECT?

A) Koch's postulates are a set of rules to identify the microorganism that causes a particular disease.
B) The microorganism that supposedly causes the disease must be present in all incidences of the disease.
C) If a microorganism is isolated and purified from a diseased individual and subsequently causes disease symptoms when injected into a healthy host, there is suggestive evidence that the microorganism causes the disease.
D) Isolation of a microorganism from a diseased individual is sufficient evidence for that organism being the causative agent of the disease.
E) The final step of Koch's rules is to compare the original pure culture with the culture isolated from the experimentally injected host..
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
21
Bacteria that are capable of carrying on photosynthesis are

A) autotrophic.
B) heterotrophic.
C) parasitic.
D) saprobic.
E) nitrate synthesizers.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
22
The red pigment that enables salt bacteria to carry on a simple form of photosynthesis is

A) anthocyanin.
B) carotene.
C) phycocyanin.
D) phycoerythrin.
E) bacterial rhodopsin.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
23
Which of the following bacteria usually has an exceptionally acidic (often less than pH 2) environment?

A) blue-green bacteria
B) hydrogen bacteria
C) sulpholobus bacteria
D) iron bacteria
E) chlamydias
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
24
Which of the following bacteria are NOT autotrophic?

A) saprobic bacteria
B) prochlorobacteria
C) purple nonsulphur bacteria
D) purple sulphur bacteria
E) green sulphur bacteria
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Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
25
Which of the following uses is NOT a product of bacterial activity?

A) Limburger and Brie cheese
B) buttermilk
C) acetone
D) tanned leather
E) vanilla flavoring
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
26
The scientist who became known for his investigations of tuberculosis and anthrax, and who formulated "postulates" for proving that a particular microorganism is the cause of a particular disease was

A) Edward Jenner.
B) Benjamin Jesty.
C) Christian Gram.
D) Robert Koch.
E) Charles Chamberland.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
27
Which of the following is NOT similar to chlorophyll a of higher plants?

A) chlorophyll b
B) bacteriochlorophyll
C) chlorophyll c
D) chlorobium chlorophyll
E) chlorophyll d
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
28
________ are special cells that are able to fix nitrogen and serve as fragmentation sites for certain types of bacteria.

A) Filaments
B) Cocci
C) Akinetes
D) Heterocysts
E) Parenchyma
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
29
Which of the following groups is, as a whole, associated with extreme environments, including hot springs, highly salinity, and anaerobic conditions?

A) All of the true bacteria.
B) Cyanobacteria
C) Protochlorobacteria
D) Archaebacteria
E) Protists
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
30
All of the following are features of the blue-green bacteria EXCEPT:

A) ability to both fix nitrogen and produce oxygen.
B) are autotrophs that produce both sugars and oxygen using light energy.
C) contain chlorophyll a and the phycobilins (phycocyanin and phycoerythrin).
D) produce a nitrogenous food reserve called cyanophycin.
E) have chloroplasts similar to those of plants for photosynthesis.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
31
The microbiologist known for his research with archaebacteria and for proposing two different kingdoms for bacteria is

A) Christian Gram.
B) Robert Koch.
C) Richard A. Lewin.
D) George Papadapoulos.
E) Carl Woese.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
32
Photosynthetic, algal-like bacteria are

A) archaea.
B) cyanobacteria.
C) methanogens.
D) chlorophytes.
E) rickettsias.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
33
The bright green prokaryotic organisms associated with sea squirts are called

A) filterable viruses.
B) prochlorobacteria.
C) green sulphur bacteria.
D) rickettsias.
E) Koch's jewels.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
34
Thick-walled cells of Nostoc and Anabaena that can withstand freezing and other adverse conditions are called

A) heterocysts.
B) holdfasts.
C) akinetes.
D) bloom cells.
E) aplanospores.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
35
The methane bacteria derive their energy from the generation of methane gas from hydrogen and

A) carbon dioxide.
B) oxygen.
C) nitrogen.
D) water.
E) sulphur.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
36
"Will-o'-the wisps" (ignis fatuus) are associated with

A) purple sulphur bacteria.
B) green sulphur bacteria.
C) sulpholobus bacteria.
D) methane bacteria.
E) purple nonsulphur bacteria.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
37
Which of the following is NOT involved in the reproduction or survival of blue-green bacteria?

A) fission
B) heterocysts
C) akinetes
D) fusion of gametes
E) DNA
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
38
Which of the following is NOT a group belonging to the archaebacteria?

A) methane bacteria
B) green sulphur bacteria
C) salt bacteria
D) sulpholobus bacteria
E) All of these answers are correct.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
39
Which of the following "useful" bacteria can be used to control Japanese beetles?

A) Bacillus thuringiensis
B) Bacillus thuringiensis var. israelensis
C) Bacillus popilliae
D) Staphylococcus spp.
E) Clostridium botulinum
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
40
Which of the following is NOT associated with blue-green bacteria?

A) nitrogenous food reserve.
B) phycoerythrin
C) Golgi bodies
D) akinetes
E) phycocyanin
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
41
Which of the following appears more promising than bacteria for the production of interferon?

A) viruses
B) algal cells
C) yeast cells
D) "sunbean" cells
E) All of these answers are correct.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
42
Bacteriophages are ________.

A) bacteria that cause Chagas disease
B) viruses that attack human cells
C) protozoans that infect red blood cells
D) harmless bacteria used in the production of vinegar
E) viruses that attach and kill bacteria
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
43
Those few blue-green bacteria capable of movement achieve movement by means of amoebalike "crawling."
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
44
Chalky, insoluble travertine deposits are precipitated by blue-green bacteria.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
45
When blue-green bacteria carry on photosynthesis, no carbohydrates are produced.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
46
Which of the following is NOT a virus?

A) HIV
B) bacteriophage
C) herpes
D) Epstein-Barr
E) None of these answers are correct
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
47
Diseases such as rabies and polio are caused by ________, and can be prevented through ________.

A) bacteria; use of antibiotics
B) protozoans; use of antibiotics
C) viruses; use of antibiotics
D) viruses; vaccination
E) prions; vaccination
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
48
Saprobic bacteria are primarily responsible for decay and recycling of organic matter in animal and plant remains and animal wastes.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
49
Bacillus thuringiensis is used to control a variety of plant-eating caterpillars (larvae).
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
50
The exterior surface of a virus is usually ________.

A) an RNA molecule
B) a protein coat
C) the nucleic acid core
D) the envelope
E) a DNA molecule
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
51
With the exception of the blue-green bacteria and photochlorobacteria, photosynthetic bacteria use either hydrogen sulfide or hydrogen of organic molecules and carbon dioxide produce carbohydrates without releasing oxygen.
Unlock Deck
Unlock for access to all 67 flashcards in this deck.
Unlock Deck
k this deck
52
In modern classifications of viruses, which of the following is now used initially to separate them into two major groups?

A) size
B) the DNA or RNA in their cores
C) shape
D) the nature of the protein coat
E) the number of identical structural units in their cores
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53
No blue-green bacteria have flagella and therefore none is capable of movement.
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54
There are no known useful viruses.
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55
Which of the following is/are possessed by both bacteria and viruses?

A) cellular structure
B) DNA or RNA
C) a nucleus
D) chlorophyll
E) flagella for locomotion
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56
A virus that attacks a bacterium is called a/an

A) vector.
B) interferon.
C) bactovirus.
D) phage.
E) aggressoparticle.
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57
Cells of higher animals that are invaded by viruses produce a protein called

A) interferon.
B) cytochrome k.
C) viroamine.
D) phage.
E) fibril.
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58
Temperatures in a compost pile can become high enough to kill weed seeds.
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59
The toxins of tetanus and botulism bacteria are considerably more powerful than strychnine.
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60
Decomposed organic matter, especially plant matter, improves soil water holding capacity and soil structure but it isn't a very good fertilizer.
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61
Blue-green bacteria, as well as certain other bacteria, can fix nitrogen.
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62
Methane, salt, and sulpholobus bacteria have in common that they are members of the eubacteria.
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63
All viruses have at their core the nucleic acid DNA.
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64
Blue-green bacteria possess chlorophyll a, but not chlorophyll b.
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65
Chemoautotrophic bacteria obtain their energy through oxidation of reduced inorganic compounds such as NH3.
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66
Many bacteria are motile because they possess bacterial flagella.
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67
Viruses cannot be used to control other pests.
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