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Micro 2420 Unit 1 Reiew Flashcards | StudBud
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Micro 2420 Unit 1 Reiew
Micro 2420 Unit 1 Reiew
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Unit 1 review for microbiology, Berg's class
Flashcards
51 cards
F
Practice quiz
P
Host live
L
Questions
51
Answers
1
Order the cell envelope layers from innermost to outermost.
cell membrane, outer membrane, cell wall
cell membrane, cell wall, outer membrane
cell wall, cell membrane, outer membrane
outer membrane, cell wall, cell membrane
2
True or False: Protozoans are unicellular, eukaryotic microbes and most are non-pathogenic
False
True
3
What is the correct writing of the microorganism?
Bacillus Cereus
Bacillus cereus
B. cereus
Bacillus cereus
4
Who studied etiology of disease & developed his own postulates?
Koch
Needham
Hooke
Pasteur
5
Which feature do both prokaryotes and eukaryotes share?
Nucleoid
Mitochondria
Capsule
Ribosome
6
Used for horizontal gene transfer in bacteria.
Pilus
Cilia
Flagella
Fimbriae
7
Who helped to develop the germ theory of disease?
Koch
Pasteur
Lister
All of the above
8
Which does NOT describe a Gram (+) bacterium?
Lipopolysaccharides
Small periplasmic space
Stains purple
60-90% peptidoglycan
9
Transmission: Direct contact. Dermatitis, itching at hairline on neck/ears. Lays nits.
Sarcoptes scabiei
Tinea capitus
Tinea corpous
Pediculus humanis capitus
10
True or false: Viruses do not have cells
False
True
11
Which is NOT true regarding pseudopods?
Moves substances across its surface using a sweeping motion
functions in engulfment/phagocytosis
literally means "false foot"
only found in cells that lack a cell wall
12
Which aspects are involved in the formation of a biofilm?
All of the above
Quorum Sensing
Glycocalyx
Binary fission
13
What type of organism causes ringworm?
A Flatworm
A Roundworm
A Ciliate
A Fungus
14
Have a complete digestive tract, protective cuticle & contain a pseudocoelum.
Flatworms
Flukes
Tapeworms
Roundworms
15
Symbiosis between fungi and plant roots.
Mycelium
Mycorrhizae
Lichen
Hyphae
16
Transmission: Fecal-oral; gastroenteritis, rash of flat, rose-colored spots.
Treponema pallidum
Mycobacterium tuberculosis
Bordetella pertussis
Salmonella enterica
17
What are the levels of classification from least specific to most specific?
Family, species, order, class, genus, phylum, kingdom,domain
Family, class, kingdom, genus, order, phylum, domain,species
Genus, species, phylum, class, domain, order, family,kingdom
Domain, kingdom, phylum, class, order, family, genus,species
18
Which mode of reproduction produces genetically unique daughter cells?
Schizogony
Meiosis
Mitosis
Binary fission
19
Which cellular arrangement consist of 8 cocci formed into a 3D cube?
Tetrad
Sarcinae
Staphlyococci
Palisade
20
Transmission: fecal-oral (direct/indirect) Symptoms: itching & irritation in perianal area
Enterobus vermicularis
Schistosoma spp.
Wucheria bancroftii
Trichinella spiralis
21
Transmitted by "kissing bug." Acute is Romana's sign; chronic is megaesophagus, megacolon & CHF
Borrelia burdorferii
Sarcoptes scabiei
Trypanosoma brucei
Trypanosoma cruzi
22
Antibiotics, such as Streptomycin and Erythromycin, specifically target what in bacterial cells
mycolic acid
70s ribosomes to prevent synthesis of protein
DNA genome
peptidoglycan synthesis in cell walls
23
Larvae matures & mates in circulatory system; eggs move into intestine/ureters; liver damage
Schistomiasis
Elephantiasis
Trichinosis
Enterobiasis
24
This reproductive process includes division of the nucleus but does not undergo cytokinesis
Meiosis
Schizogony
Mitosis
Binary fission
25
Which structure is used for adhesion to other cells and surfaces?
Cytoskeleton
Fimbriae
Flagella
Pilus
26
Small, round vesicle with enzymes used for digestion of old cell parts, food, & other objects.
Lysosome
Ribosome
Peroxisome
Vacuole
27
Makes H
2
O
2
, detoxifies harmful substances
Lysosome
Rough ER
Peroxisome
Golgi apparatus
28
What is a multinucleated fungal cells?
Coenocytes
Dimorphism
Mycelium
Merozoites
29
Cells have a nucleiod
Prokaryotes and Archaea
Eukaryotes only
Prokaryotes and Eukaryotes
Prokaryotes only
30
Which ogranisms do NOT have a cell wall?
Plant cells
Fungi
Ligonella
Mycoplasma
31
Which characteristics make up the plasma membrane?
Proteins
Phospholipids
Hopanoids
All of the above
32
Which of the following statements regarding endospores is TRUE?
Endospores enable a cell to survive environmental changes.
A single cell can produce many endospores.
Endospores are easily stained in a Gram stain.
Endospores are used for reproduction.
33
Which is true regarding protozoans?
All of the above
trophozite is the active feeding stage
generally lack cell wall
unicellular, eukaryotic, microbes
34
Normal microbiota of the skin, hyperpigmented patches of skin appear due to damaged melanocytes
Tinea corporus
Tinea unquium
Tinea cruris
Tinea veriscolor
35
Which of the following is NOT a domain in the three-domain system?
Archea
Species
Eukarya
Bacteria
36
Which is not true of Kingdom Fungi
lack chlorophyll
They are all saprophytic.
Major contributor of allergies
Unicellular organisms
37
Cell wall contains pseudomurein.
Bacteria
Archaea
Eukarya
Animal
38
Which of the following would be expected to readily pass through the cytoplasmic membrane?
large molecules
charged ions
small hydrophilic molecules
small hydrophobic molecules
39
True or False: All microbes induce disease.
False
True
40
Which is true regarding the Gram stain?
Iodine used as the decolorizer
Gram's alcohol is used as mordant
Crystal violet is used in the last step
Gram (-) organisms will stain pink
41
Who coined the term "cell."
Hooke
Semmelweis
Aristotle
Fleming
42
What state is a vegetative endospore cell in?
Cystic state
conidaspore
Metabolically active
Inert, resting condition
43
What is the study of algae?
Phycology
Virology
Taxonomy
Mycology
44
Symbiotic relationship between fungi and algae.
Hyphae
Lichen
Mycelium
Schizont
45
What is this image depicting?
gram positive cell wall
gram negative cell wall
animal cell wall
capsule
46
What term best describes the morphology of this picture?
Peritrichous
Atrichous
Lophotrichous
Monotrichous
47
What is the union of haploid gametes?
Dikaryotic cell
Meiosis
Plasmogamy
Karyogamy
48
What is the science of classifying and organizing organisms into related groups?
Taxonomy
Mycology
Virology
Microbiology
49
Move via flagella; some are attached by an undulating membrane. Have complex life cycle.
Zooflagellates
Ciliates
Apicomplexans
Sarcodina/Amoebozoa
50
True or false: Fungi contain chlorophyll.
False
True
51
Which of the following statements about helminths is false?
They are multicellular animals.
They have eukaryotic cells
All are parasitic.
They are heterotrophic
