Midterms Flashcards

(78 cards)

1
Q

groups of microorganisms contains both DNA and RNA?

A

Viruses, Viroids, Prions and Lichens

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2
Q

Who is the Russian scientist who established the characteristics of viruses

A

Iwanowsky

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3
Q

How many bacterial genera belongs to family Enterobacteriaceae?

A

8

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4
Q

Which of the following cannot survive at ph 8.5?

A

Acidophiles

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5
Q
  1. Which of the following is the site of generation of proton motive force?
A
  • cytoplasmic membrane
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6
Q
  1. Which of the following metabolic pathway is used by some microorganisms when acetate is the sole carbon source?
A
  • Glyoxylate Cycle
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7
Q

Which of the following structures external to the bacterial cell wall facilitates nutrient absorption in diluted environment?

A

prosthecae

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8
Q

Which of the following microscopes is not useful in the study of living microorganisms?

A

Transmission Electron

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9
Q

Which of the following media is differential?

A
  • Blood Agar
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10
Q

Which of the following features are produced by or found in gram negative bacteria?

A
  • Braun’s lipoprptein
  • periplasm
  • spheroplasts
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11
Q

major groups of microorganisms is eukaryotic and absorptive

A

fungi

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12
Q

cellular structures contains the unit of hereditary material that contains the informations that determine the characteristics of certain organism?

A

chromosome

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13
Q

term refers to a convenient energy carrier that provides the cell with readily available energy?

A

ATP

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14
Q

Rickettsial disease is transmitted by ticks?

A
  • Rocky Mountain Spotted Fever
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15
Q

seen in unaided human eye?

A
  • microbial colony
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16
Q

does not describe Mycoplasmas?

A
  • unlimited biosynthetic abilities
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17
Q

microscopes can examine cells in a living state?

A

darkfield

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18
Q

groups of microorganisms are able to grow in oxygen concentration that is lower than the atmospheric air?

A

microaerophiles

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19
Q

Which of the following is a mollicute?

A

Mycoplasma

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20
Q
  1. Which of the following is anabolic?
A

amination

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21
Q

bacterial genera belongs to Family Rickettsiaceae?

A
  • Rickettsia
  • Rochalimaea
  • Coxiella
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22
Q

phase of bacterial growth occurs when bacterial cells are metabolizing?

A

lag phase

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23
Q

following structures external to the bacterial cell wall are responsible for travelling a helical wave?

A
  • axial filaments
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24
Q

species of genus Vibrio is a pathogen for marine fish and eels?

A
  • anguillarum
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25
How many bacterial families belong to aerobic, gram negative rods and cocci?
7
26
Which major class of enzymes is involved in electron transfer reactions?
Oxidoreductase
27
30. Which of the following refers to cysts?
* it can undergo germination under suitable condition * it is metabolically dormant * it develops by differentiation of vegetative cell
28
Who recognized the indirect transmission of diseases?
Semmelweis
29
Term appropriate when we refer to all organized chemical activities performed by a cell?
metabolism
30
genera of Spirosomaceae produces yellow colonies?
spirosoma
31
spirochetes affects human beings?
* Leptospira spp Borrelia spp * Treponema spp.
32
major groups of microorganisms is prokaryotic?
bacteria
33
scientist believed that microorganisms in the air have weight?
Pasteur
34
groups of microorganisms are usually harmed by the presence of molecular oxygen?
obligate anaerobes
35
bacterial genera is gram negative?
Aeromonas
36
features is distinguishing for Spirochetes?
* with periplasmic flagella
37
following is achieved when light rays from an illuminator are passed through a condenser?
magnification
38
the major groups of microorganisms is neither prokaryotic nor eukaryotic?
virus
39
44. Who introduced original canning process
* Francois Appert
40
45. Who is the microbiologist who first encountered a problem on spores?
John Tyndall
41
a bacterial genus that contains enzymes necessary to use glucose and inorganic salts for the synthesis of all amino acids they need?
Lactobacillus
42
terms refers to the ability of the lenses to distinguish fine two points as distinct and separate?
resolution
43
major class of enzymes is involved in the formation of bonds with cleavage or breakage of ATP?
Ligase
44
major groups of microorganism is eukaryotic and ingestive?
protozoa
45
term refers to the light-bending ability of the medium?
reflective index
46
features are produced by or found in gram positive bacteria?
* greater amount of peptidoglycan ragmentation Budding * teichoic acid * protoplasts
47
introduced asceptic surgery?
Lister
48
the following statements describes Hexose Monophosphate Shunt?
* It is used by Enterococcus faecalis * It operates simultaneously with glycolysis * It yields only 1 net gain of ATP molecule
49
scientists believed that microorganisms in the air can be killed by heating?
Spallanzani
50
following tests identifies the microorganisms by detecting small amounts of microbial DNA in a sample?
Polymerase Chain Reaction
51
the following bacterial genera is parasitic on other Gram negative bacteria?
Bdellovibrio
52
bacterial genera lacks cell wall?
Mycoplasma
53
structures external to the bacterial cell wall are responsible in facilitating adhesions to the host cell?
Fimbrae
54
serves as template for DNA synthesis?
another DNA
55
microbiologist that described spores as special stage in the life cycle of hay bacillus
Ferdinand Cohn
56
1. following scientists did not oppose the theory of spontaneous generation?
Needham
57
stage of bacterial growth cycle has deficient enzymes and coenzymes?
lag phase
58
bacterial genera is gram positive?
Bacillus
59
How can we measure bacterial activity?
biochemical test
60
bacterial genera is budding and/or appendaged?
Caulobacter
61
microorganisms produces green crystals around colonies?
* Pseudomonas chlororaphis
62
Whose observation laid the groundwork for the development of the cell theory?
Hooke
63
72. Which of the following is an oxidizing agent?
Ferric ion
64
Who discovered the antibiotic ‘Penicillin'?
Alexander Fleming
65
term appropriate when we refer to all organized chemical activities performed by a cell for energy production?
catabolism
66
metabolic pathways is amphibolic (pathway that functions in both anabolistic and catabolistic reactions.?
Kreb cycle
67
bacterial genera is described as very short rods with no flagella?
* Brucella * Francisella * Bordetella
68
highly pleomorphic with no cell wall?
mycoplasma
69
group of microorganisms grows in Saboraud’s Dextrose Agar?
fungi
70
term appropriate when we refer to all organized chemical activities performed by a cell that utilized energy?
anabolism
71
food reserve deposits are found in enteric bacteria?
glycogen
72
pathway is an initial step for both fermentation and cellular respiration of eukaryotes?
Embden Meyerhoff Pathway
73
major group of microorganisms generates ATP via photophosphorylation?
algae
74
microorganisms produces yellow colonies?
Mirococcus luteus
75
95. Who is the microbiologist who concluded that epidemic disease can be spread directly or indirectly
Fracastoro
76
major class of enzymes is involved in the addition of double bonds in a molecule as well as non-hydrolytic removal of chemical groups?
Lyases
77
stage of bacterial growth cycle has constant population?
Stationary phase
78