12694657
Descripción
Test por Jessica Bulley, actualizado hace más de 1 año
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Creado por Jessica Bulley
hace más de 6 años
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Pregunta 1
Pregunta
Both Genus and species names are either ..
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underlined and bold
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underlined and italicized
Pregunta 2
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First letter of Genus is always
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capitalized
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lower case
Pregunta 3
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Species designation is always
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lowercase
-
uppercase
Pregunta 4
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Which name is never abbreviated
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Genus
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Species
Pregunta 5
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[blank_start]87%[blank_end] of Microorganisms are harmless
[blank_start]10%[blank_end] of Microorganisms are opportunistic
[blank_start]3%[blank_end] of Microorganisms are overtly pathogenic
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87%
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10%
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3%
Pregunta 6
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Total microbial load [blank_start]>10.13[blank_end] microbial cells in the body vs. [blank_start]10.13[blank_end] body cells
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>10.13
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>10.12
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10.13
-
10.14
Pregunta 7
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Robert Hooke (1665) was the first person to
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describe a cell
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developing antisepsis for surgery
Pregunta 8
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Joseph Lister (1870) was the first person to...
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develop antisepsis for surgery
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describe a cell
Pregunta 9
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Antoni Van Leeuwinhoek was the first person to...
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describe a cell
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describe bacteria including their shapes
Pregunta 10
Pregunta
Robert Hooke was the first person to [blank_start]describe a cell[blank_end]
Joseph Lister was the first person to [blank_start]develop antisepsis[blank_end]
Antoni van Leeuwenhoek was the first person to [blank_start]describe a bacterium[blank_end]
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describe a cell
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develop antisepsis
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develop antisepsis
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describe a bacterium
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describe a bacterium
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describe a cell
Pregunta 11
Pregunta
Ignaz Semmelweis was the first to...
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use handwashing in clinical practice
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develop antisepsis
Pregunta 12
Pregunta
Select the two correct answers
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Louis Pasteur was the first person to disprove abiogenesis
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Louis Pasteur was the first person to discover pasteurisation
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Louis Pasteur was the first person to apply hand washing in clinical practice
Pregunta 13
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Robert Koch was the first to study the following two diseases..
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Anthrax
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Tubercolosis
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Chlamidia
Pregunta 14
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Robert Koch found the
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germ theory of disease
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disproved the theory of abiogenesis
Pregunta 15
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Robert Koch contributed towards staining methods for microbes
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- True
- False
Pregunta 16
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Kochs postulates (germ theory of disease)
1. Specific causative agent must [blank_start]be found in every case of disease[blank_end]
2. Disease organism must [blank_start]be isolated in pure culture[blank_end]
3. Innoculation of culture sample into healthy animal must [blank_start]produce same disease[blank_end]
4. Disease organism must [blank_start]be recovered from animal[blank_end]
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be found in every case of disease
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be isolated in pure culture
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produce same disease
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be recovered from animal
Pregunta 17
Pregunta
Select the three domains of life
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Eubacteria
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Fungi
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Archaea
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Algae
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Protozoa
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Eucarya
Pregunta 18
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What are the two aspects of Eubacteria
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Gram stain positive and negative
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Algae and Fungi
Pregunta 19
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Select which is classified as Eucarya
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Algae, Fungi, Cyanobacteria, Plants, Animals
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Plants, Animals, Thermophiles, Algae, Fungi
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Protozoa, Algae, Fungi, Plants, Animals
Pregunta 20
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Archaea and Bacteria are
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Eukaryotes
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Prokaryotes
Pregunta 21
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Fungi, Protozoa and Fungi are
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Prokaryotes
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Eukaryotes
Pregunta 22
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Protozoa are
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single celled Eukaryotes
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single celled Prokaryotes
Pregunta 23
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Fungi have a cell wall
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- True
- False
Pregunta 24
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Moulds are
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Unicellular
-
Multicellular
Pregunta 25
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Moulds reproduce
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Sexually and Asexually
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Budding
Pregunta 26
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Yeasts are
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Unicellular
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Multicellular
Pregunta 27
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Yeasts reproduce by
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budding
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sexual reproduction
Pregunta 28
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Bacteria have a nuclei
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- True
- False
Pregunta 29
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A virus which infects a bacteria is called a Bacteriophage
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- True
- False
Pregunta 30
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Peptidoglycan is found in Prokaryotes cell wall (Bacteria/Eubacteria)
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- True
- False
Pregunta 31
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Prokaryotes do not reproduce by binary fission
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- True
- False
Pregunta 32
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Eukaryotes reproduce by meiosis/meitosis
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- True
- False
Pregunta 33
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Endospores are not a survival mechanism by Prokaryotes
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- True
- False
Pregunta 34
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Plasmids are small, enclosed, transferable pieces of DNA
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- True
- False
Pregunta 35
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Bacteria contain plasmids
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- True
- False
Pregunta 36
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Gram stain positive bacteria have a [blank_start]thick[blank_end] cell wall layer of peptidoglycan and teichoic acid and [blank_start]lipoteichoic[blank_end] acid
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thick
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thin
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lipoteichoic
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lipopolysaccharide
Pregunta 37
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Gram Negative bacteria have an outer membrane called [blank_start]lipopolysaccharide[blank_end]
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-
lipopolysaccharide
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lipoteichoic
Pregunta 38
Pregunta
Select the two different types of Glycocalyx
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slime
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capsules
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capsid
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lipopolysaccharide
Pregunta 39
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Flagella are for [blank_start]motility[blank_end] only
Fimbriae are for [blank_start]adherence[blank_end] only
Pili is for [blank_start]conjugation[blank_end] and adherence
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motility
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adherence
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adherence
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motility
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conjugation
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motility
Pregunta 40
Pregunta
Describe this polar distribution of bacterial flagella
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Monotrichous
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Iophotrichous
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Amphitrichous
Pregunta 41
Pregunta
Describe this polar distribution of bacterial flagella
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Monotrichous
-
Iophotrichous
-
Amphitrichous
Pregunta 42
Pregunta
Describe this polar distribution of bacterial flagella
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Amphitrichous
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Iophotrichous
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Monotrichous
Pregunta 43
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What is the purpose of Bacterial Sporulation?
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survival under unfavorable growth conditions
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survival under favorable growth conditions
Pregunta 44
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Bacteria reproduce by a process called
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Binary Fission
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Budding
Pregunta 45
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Binary Fission is a
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Asexual process
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Sexual process
Pregunta 46
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Binary Fission is a process of when
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single cell splits into two sister cells
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Two non-identical cells developed sexually
Pregunta 47
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The bacterial growth stages comprises of the [blank_start]lag[blank_end] phase to begin with, then the [blank_start]exponential[blank_end] phase, then the [blank_start]stationary[blank_end] phase, followed by the [blank_start]death/decline[blank_end] stage
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lag
-
exponential
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exponential
-
stationary
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stationary
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exponential
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death/decline
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stationary
Pregunta 48
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There are many different atmospheric conditions for Bacteria such as:
[blank_start]Obligate Aerobe[blank_end] - which oxygen is essential for growth
[blank_start]Microaerophiles[blank_end] - low levels of oxygen is required
[blank_start]Obligate Anaerobes[blank_end] - will only grow in complete absence of Oxygen
[blank_start]Facultative Anaerobes[blank_end] - able to grow with or without Oxygen
[blank_start]Carboxyphiles[blank_end] - grow best with increased presence of CO2
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Obligate Aerobe
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Microaerophiles
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Microaerophiles
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Obligate Aerobe
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Obligate Anaerobes
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Facultative Anaerobes
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Facultative Anaerobes
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Carboxyphiles
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Carboxyphiles
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Obligate Aerobe
Pregunta 49
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Temperature preferences:
[blank_start]Psychrophiles[blank_end] - Growth temp. 0 - 20 degrees
[blank_start]Mesophiles[blank_end] - Growth temp. 10 - 45 degrees
[blank_start]Thermophiles[blank_end] - Growth temp. 45 - 85 degrees
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Psychrophiles
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Mesophiles
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Thermophiles
Pregunta 50
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The breakdown and formation of ATP is mediated by the oxidation-redoxation(redox) reactions:
[blank_start]Oxidation[blank_end] - Electrons loss
[blank_start]Reductions[blank_end] - Electrons gain
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Oxidation
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Reductions
Pregunta 51
Pregunta
Fermentation produces low ATP
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- True
- False
Pregunta 52
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Respiration produces lots of ATP
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- True
- False
Pregunta 53
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Host microbes relationship:
[blank_start]Mutualism[blank_end] - where both members benefit
[blank_start]Commensalism[blank_end] - where one member benefits without harming the other
[blank_start]Parasitism[blank_end] - relationship where one member is harmed for the other members gain
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Mutualism
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Commensalism
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Parasitism
Pregunta 54
Pregunta
Stages of Infectious disease:
[blank_start]Incubation period[blank_end] - No symptoms
[blank_start]Prodromal phase[blank_end] - Mild symptoms
[blank_start]Invasive phase[blank_end] - Identifiable disease with dramatic microbial increase
[blank_start]Decline phase[blank_end] - Reduction of microbes
[blank_start]Convalescence[blank_end] - Recovery
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Incubation period
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Prodromal phase
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Invasive phase
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Decline phase
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Convalescence
Pregunta 55
Pregunta
Endotoxin and Exotoxins are toxic substances secreted by bacteria and released outside the cell
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- True
- False
Pregunta 56
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Gram-positive bacteria
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Gram-negative bacteria
Pregunta 57
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Endotoxins are toxins that are primarily produced by
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Gram-negative bacteria
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Gram-positive bacteria
Pregunta 58
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gram-positive bacteria secreted by the living bacterial cell
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gram-positive bacteria dies by the bacterial cell
Pregunta 59
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Gram-negative bacteria dies and wall breaks up
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Gram-negative bacteria is alive during secretion
Pregunta 60
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Haemolysins are lipids and proteins that cause lysis of red blood cells by destroying their cell membrane.
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- True
- False
Pregunta 61
Pregunta
Alpha is a type of Haemolysin which is non-haemolytic
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- True
- False
Pregunta 62
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The three types of Haemolysins are:
[blank_start]Alpha[blank_end] - Partial lysis of RBC, grey/green colour
[blank_start]Beta[blank_end] - completely clear zone around colonies
[blank_start]Gamma[blank_end] - Non-haemolytic
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-
Alpha
-
Beta
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Gamma
Pregunta 63
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Haemolysin which causes partial lysis of RBC is called
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-
Alpha
-
Beta
Pregunta 64
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Haemolysin which causes complete lysis of RBC is called
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Alpha
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Beta
Pregunta 65
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Non-Haemolysin of lysis to RBC is called
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Alpha
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Gamma
Pregunta 66
Pregunta
Microbial Biofilms consist of
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microbes, cell debris and extra-cellular matrix
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microbes, capsules and extra-cellular matrix
Pregunta 67
Pregunta
Iris diaphragm and condenser control light on a microscope
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- True
- False
Pregunta 68
Pregunta
Contrast can be increased by closing the condenser diaphragm on a microscope
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- True
- False
Pregunta 69
Pregunta
Select the Four principle shapes of Bacteria
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Rods/Bacillus
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Coccus
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Spirals
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Vibrio/Comma
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Chains
-
Clusters
Pregunta 70
Pregunta
[blank_start]Selective media[blank_end] only allow certain bacteria to grow while inhibiting others.
[blank_start]Differential media[blank_end] contain substances that will allow different bacteria to be distinguished from each other
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Selective media
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Differential media
Pregunta 71
Pregunta
- [blank_start]Mannitol Salt Agar (MSA)[blank_end] is selective for Staphylococci - high salt concentration.
- [blank_start]MacConkey agar[blank_end] is a selective and differential culture medium for bacteria designed to selectively isolate Gram-negative and enteric bacilli and differentiate them based on lactose fermentation
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Mannitol Salt Agar (MSA)
-
MacConkey agar
Pregunta 72
Pregunta
Mannitol Salt Agar (MSA) is selective for Staphylococci - high salt concentration.
Respuesta
- True
- False
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