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10 Cards in this Set
- Front
- Back
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__ is an inflammatory disease that may develop after an infection with streptococcus bacteria (such as strep throat/scarlet fever) & can involve the heart, joints, skin and brain.
- Causitive organism for this disease & scarlet fever was ___ |
__Rheumatic fever__ is an inflammatory disease that may develop after an infection with streptococcus bacteria (such as strep throat/scarlet fever) & can involve the heart, joints, skin and brain.
- Causitive organism for this disease & scarlet fever was *streptococcus |
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__ group of Streptococcus
- Not bile soluble - Most of this group is alpha hemolytic - this group is normal inhabitants of nasopharynx & gingival crevices**** - big heterogenous group of streptococcus - word means latin for green & produces green tint when cultured |
_Viridians__ group of Streptococcus
- Not bile soluble - Most of this group is alpha hemolytic - ****this group is normal inhabitants of nasopharynx & gingival crevices**** - big heterogenous group of streptococcus - word means latin for green & produces green tint when cultured |
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Some of the viridian group can produce acid and dental caries
especially __ which can bind to the teeth by producing dextran polysaccharides in the presence of sucrose; also known as glycans |
Some of the viridian group can produce acid and dental caries
especially _S. mutans_which can bind to the teeth by producing dextran polysaccharides in the presence of sucrose; also known as glycans |
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S. mutans metabolize sucrose to __ which breates an acidic environment which can demineralize enamel.
- sucrose is used by s. mutans to produce __ which allows the strep to adhere to tooth & add volume of plaque - Other sugars (glucose, fructose, lactose) can be digested by s. mutans but the end product is always __ not dextrans |
S. mutans metabolize sucrose to _Lactic Acid_which breates an acidic environment which can demineralize enamel.
- sucrose is used by s. mutans to produce _ Dextrans_which allows the strep to adhere to tooth & add volume of plaque - Other sugars (glucose, fructose, lactose) can be digested by s. mutans but the end product is always _LACTIC ACID_not dextrans |
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It is the combination of __ and __ that lead to DENTAL CARIES
- S. mutans is not associated w/ periodontal disease |
It is the combination of __Plaque__ and _Acid__ that lead to DENTAL CARIES
- S. mutans is not associated w/ periodontal disease |
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Gram __ cell wall
- very thick - contains teichoic acid - does NOT block diffusion of antibiotics (vulnerable to penicillin & lysozme) - low lipid content - has 2 layers - NO periplasmic space/porin channel - NO ENDOTOXIN |
Gram Positive (+) cell wall
- very thick - contains teichoic acid - does NOT block diffusion of antibiotics (vulnerable to penicillin & lysozme) - low lipid content - has 2 layers - NO periplasmic space/porin channel - NO ENDOTOXIN |
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Gram __ cell wall
- very thin - cell wall has murein lipoprotein - contains 3 layers - high lipid content - has periplasmic space/ porin channel - Outer cell membrane contains endotoxin (lipid A) - Design allows gram - cells to block diffusion of substances that attack cell walls such as penicillins and lysozymes |
Gram Negative (-) cell wall
- very thin - cell wall has murein lipoprotein - contains 3 layers - high lipid content - has periplasmic space/ porin channel - Outer cell membrane contains endotoxin (lipid A) - Design allows gram - cells to block diffusion of substances that attack cell walls such as penicillins and lysozymes |
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TB is a disease caused by __ called ___
TB is __ infection (not viral or fungal) and it is acquired via airborne transmission - __ require dark field microscopy -__ bacteria require acid fast stain testing |
TB disease cause by BACTERIA called _Mycobacterium TB__
- TB is a bacterial infection not viral/ fungal & is acquired via airborne - *Spirochete* require dark field microscopy -Mycobacteria require acid fast stain technique |
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Gram ___ Cocci
- do NOT form spores - NON MOBILE |
Gram (+) Cocci
- Do NOT form Spores - Non MObile |
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All __ are catalase negative
- Streptococcus are divided into 3 groups based on their ability to Hemolyse RBC (bag) **__ Hemolytic Strep- completely lyse RBC **___ hemolytic strep- partially lyse RBC ** ___ hemolytic strep- unable to lyse RBC |
All _Streptococcus__ are catalase negative
- Streptococcus are divided into 3 groups based on their ability to Hemolyse RBC (bag) **Beta Hemolytic Strep- completely lyse RBC **Alpha hemolytic strep- partially lyse RBC ** Gamma hemolytic strep- unable to lyse RBC |
