問題一覧
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Released by all major gram positive organisms except: Listeria
EXOTOXINS
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Usually produced by gram negative organisms
ENDOTOXINS
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Usually excreted or released by living bacterial cells; does not require cell death for release
EXOTOXINS
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Released only when cells are destroyed (cell death/lysis)
ENDOTOXINS
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Composition of Exotoxins producing bacteria?
Protein
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Composition of Endotoxins producing bacteria?
polysaccharides
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Effect of Exotoxins producing bacteria?
Systemic
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Effect of Endotoxins producing bacteria?
local
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Toxicity level of Exotoxins producing bacteria?
High
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Toxicity level of Endotoxins producing bacteria?
Low
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Stability to heating of Exotoxins producing bacteria?
Unstable
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Stability to heating of Endotoxins producing bacteria?
Stable
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This is the slimy area surrounding the cell wall
CAPSULE
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Responsible for mucoid colonies (encapsulated bacteria)
CAPSULE
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This parts of bacteria prevents phagocytosis
CAPSULE
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This is a capsular swelling test that used to determine if an organism is encapsulated?
Neufeld Quellung Test
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give four bacterias positive (+) with capsule? Hint: BKSH
Bacillus anthracis, Klebsiella pneumoniae, Haemophilus influenzae, Streptococcus pneumoniae
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Cell wall is also known as?
Murein Layer, Peptidoglycan layer
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Defines the shape of bacteria; main component is peptidoglycan
CELL WALL
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Point of anchorage for flagella
CELL WALL
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Site of antibiotic action
CELL WALL
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Basis of gram staining; determines gram positivity/negativity of an organism
CELL WALL
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Gram (+) Bacteria
WITH RIGID PEPTIDOGLYCAN LAYER
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Gram (-) Bacteria?
WITH THINNER PEPTIDOGLYCAN LAYER
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Gram (+) Bacteria
IMPERMEABLE TO ALCOHOL
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Gram (-) Bacteria
PERMEABLE TO ALCOHOL
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Gram (+) Bacteria contains these components on their cell wall
N-acetylglucosamine, n-acetyl muramic acid
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Gram (-) Bacteria contains these components on their cell wall
Proteins, Phospholipids, Lipopolysaccharide
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This bacterias doesn't contain cell wall Hint: MyU
Mycoplasma, Ureaplasma
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Major virulence factor of S. pneumoniae and used to prevent phagocytosis
M Protein
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This is responsible for the acid-fastness of Mycobacterium and prevents digestion during phagocytosis
Mycolic acid
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Surrounds the cytoplasm; site of energy synthesis
PLASMA MEMBRANE
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Transport of nutrients in and out of the cell; function as golgi apparatus and lysosome
PLASMA MEMBRANE
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Functions for adherence or attachment to host cells
PILI OR FIMBRIAE
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This bacteria has terminally located spores
Clostridium tetani
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This bacteria has subterminal spores
Clostridium botulinum
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This bacteria has centrally located spores
Bacillus anthracis
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Resistant structure enabling bacteria to withstand adverse conditions; target of sterilization
ENDOSPORES
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For locomotion; longer than pili
FLAGELLA
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What are the motile bacterias?
Escherichia coli, Clostridium tetani, Helicobacter pylori
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What are the non-motile bacterias?
Corynebacterium diphtheriae, Clostridium perfringens, Bacillus anthracis, Staphylococci
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Motility is best seen at what temperature?
Room temperature
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This is the movement of non-motile organisms due to the movement of molecules surrounding them? Hint: its a color
Brownian movement
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With gliding motility
Capnocytophaga
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With darting motility
Campylobacter
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With tumbling motility
Listeria
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With twitching motility
Kingella kingae
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With shooting star motility
Vibrio cholerae
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With cork-screw motility
Spirochetes
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Serves as energy source; these are food reserves
METACHROMATIC GRANULES
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The DNA in the bacterial cell is generally confined to this central region
NUCLEOID
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Protein synthesis; Gives the cytoplasm of bacteria a granular appearance in EM
RIBOSOME
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Metachromatic granules of Corynebacterium diphtheriae
Babes Ernst Granules
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Metachromatic granules of Mycobacterium tuberculosis
Much Granules
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Metachromatic granules of Yersinia pestis
Bipolar Granules
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Metachromatic granules of Nocardia and Actinomycetes
Sulfur granules
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single flagellum at one end
Monotrichous
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single flagellum at both ends
Amphitrichous
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absence of flagella
Atrichous
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tuft of flagella at one or both ends;
Lophotrichous
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surrounded with flagella
Peritrichous
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Parts of the external cell wall of bacteria
Capsule, Pili, Flagella