Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
microbio275 pt. 1
Gram Negative Pathogens
| Question | Answer |
|---|---|
| largest group of human bacterial pathogens | gram-negative bacteria |
| pathogenic gram-negative cocci | neisseria |
| regularly causes diseases; nonmotile, aerobic bacteria, oxidase positive | neisseria |
| adhere to genital, urinary, and digestive tract; painful urination & pus-filled discharge (men); asymptomatic & pelvic inflammatory disease (women) | neisseria gonorrhoeae |
| normal microbiota of upper respiratory tract; transmitted in close contact; cause death within 6 hrs of symptoms | neirsseria meningitidis |
| most common gram-negative pathogens; coliform vs non-coliform; opportunists & true pathogens | Enterobacteriaceae |
| outer membrane, type III secretion system, capsular antigen, flagellar | antigens of typical enteric bacteria |
| fimbria, exotoxin, adhesion, plasmid, iron-binding protein, hemolysin | virulence factors of typical enteric bacteria |
| found in soil & plants; colonize intestinal tracts of animals and humans | coliform opportunistic enterobacteriaceae |
| most common & important of the coliforms; virulent strains=virulent plasmids; common cause of non-nosocomial urinary tract infections | Escherichia coli |
| capsule protects bacteria from phagocytosis, causes pneumonia | Klebsiella |
| produce red pigment; grows on catheters & hospital supplies; can cause life-threatening opportunistic infections in immunocompromised patients; difficult treat due to resistance to antimicrobial dugs | Serratia |
| most commonly associated with human disease: produces urease, UTI/catheters, infection-induced kidney stones, resistant to many antimicrobial drugs | Proteus (mirabilis) |
| always pathogenic; secrete proteins that inhibit phagocytosis, rearrange the cytoskeletons of eukaryotic cells, or induce apoptosis | pathogenic enterobacteriaceae |
| gram(-), motile bacilli, fecal-oral route, causes salmonellosis, peritonitis, & typhoid fever; fluid & electrolyte replacement | Salmonella |
| gram(-), nonmotile, diarrhea-inducing enterotoxin, 4 well-defined species: S. dysenteriae, S. flexneri, S. boydii, S. sonnei | Shigella |
| normal pathogen of animals, gram(-), facultatively anaerobic bacilli | Yershinia |
| causes inflammation of intestinal tract | Y. enterocolitica |
| similar to y. enterocolitica but less severe | Y. pseudotuberculosis |
| causes bubonic and pneumonic plague; antibacterial drugs are effective | Y. pestis |
| normal; humans infected by animal bites/inhalation of aerosols;antibacterial drugs are effective | Pasteurellaceae |
| capsules resist phagocytosis,can be sexually transmitted | (Pasteurellaceae) Haemophilus |
| small, nonmotile, aerobic coccobacilli; illness characterized by fluctuating fever; contact with contaminated dairy products/animal parts | Brucella (brucellosis) |
| small, aerobic, nonmotile coccobacillus; pertussis, adhesins & toxins mdeiate disease; bacteria inhaled in aerosols/multiply in epithelial cells | Bordetella |
| ubiquitous in soil/decaying matter, opportunistic pathogens | Pseudomonads |
| only an opportunistic pathogen, can colonize any organ/system, difficult b/c of drug resistance | Pseudomonas aeruginosa |
| universal inhabitants of water, intracellular parasites, elimination of bacteria not feasible | (Pseudomonads) Legionella |
| normal microbiota of intestinal/upper respiratory tracts; abdominal infections, genital infections, wound infections of skin | Bacteroides |
Created by:
bsulankey
Popular Biology sets