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30 Cards in this Set
- Front
- Back
1. Peptidoglycan function in bacteria?
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a. Gives rigid support, protects against osmotic pressure.
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2. Peptidoglycan Chemical composition?
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a. Sugar backbone w/cross-linked peptide side chains.
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3. Cell wall/cell membrane (gram positives) function?
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a. Major surface antigen.
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4. Teichoic acid induces?
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a. TNF and IL-1.
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5. Outer Membrane function (Gram negatives)?
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a. Site of endotoxin (LPS).
b. Major surface antigen. |
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6. Lipid A of outer membrane in gram negatives induces what in host?
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a. TNF and IL-1.
b. Polysaccharide is the antigen. |
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7. Plasma membrane function in bacteria?
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a. Site of oxidative and transport enzymes.
b. Lipoprotein bilayer. |
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8. Ribosome function in bacteria?
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a. Protein synthesis.
b. Composed of 50s and 30s subunits. |
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9. Periplasm function in bacteria?
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a. Space between the cytoplasmic membrane and peptidoglycan wall in G- bacteria.
b. Contains many hydrolytic enzymes, including β-lactamases. |
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10. Capsule function in bacteria?
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a. Protects against phago.
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11. Capsule composition in bacteria?
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a. Polysaccharide (save for B. anthracis, which contains D-glutamate).
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12. Pilus/fimbria function in bacteria?
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a. Mediates adherence of bacteria to cell surface.
b. Sex pilus forms attachment between 2 bacteria during conjugation. |
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13. Pilus/fimbria composition?
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a. Glycoprotein
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14. Spore function and structure?
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a. Provides resistance to dehydration, heat, and chemicals.
b. Composed of keratin-like coat; dipicolinic acid. |
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15. Plasmid function?
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a. Contains a variety of genes for antibiotic resistance, enzymes, and toxins.
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16. Plasmid composition?
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a. DNA.
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17. Glycocalyx function in bacteria?
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a. Mediates adherence to surfaces, especially foreign surfaces (e.g. indwelling catheters).
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18. Glycocalyx composition?
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a. Polysaccharide.
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19. What structure is unique to gram positive bacteria?
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a. Teichoic acid.
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20. Which bacteria has a much thicker cell wall (composed of peptidoglycan)?
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a. G+.
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21. Which bacteria has periplasm?
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a. G-.
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22. Where is endotoxin/LPS (outer membrane) located in relation to the cell wall in G-?
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a. Superficial to it.
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23. Gram negative diplococcus?
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a. Neisseria.
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24. Gram positive Rods (bacillus)/
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1. Clostridium
2. Corynebacterium 3. Bacillus 4. Listeria 5. Mycobacterium (acid fast). |
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25. Gram negative rods?
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1. Enterics
2. Haemophilus 3. Legionella (silver) 4. Bordetella 5. Francisella 6. Brucella 7. Pasteurella 8. Bartonella 9. Gardnerella (gram variable). |
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26. Enterics (G- rods)?
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1. E. coli
2. Shigella/salmonella 3. Yersinia 4. Klebsiella 5. Proteus 6. Enterobacter 7. Serratia 8. Vibrio 9. Campylobacter 10. Helicobacter 11. Pseudomonas 12. Bacteroides. |
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27. Gram positive Branching filamentous bacteria (no G- in this category)?
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a. Actinomyces and nocardia.
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28. Gram negative pleomorphics (no G+ pleomorphics)?
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a. Rickettsiae and Chlamydia.
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29. Stain for Chlamydia?!?!?!?!?
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a. Giemsa.
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30. For what 4 organisms is Giemsa stain used for?
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a. Borrelia
b. Plasmodium c. Trypanosomes d. Chlamydia. |