Bacteria and their gram stains Flashcards by Kat Qiao

Q

What is Staph. aureus?

A

Gram-positive cocci

Appear in clusters (like purple grapes)

Coagulase positive (mostly)

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Q

What is Strep. pneumoniae?

A

Gram-positive diplococci

Appear in strands

Alpha or Beta haemolytic

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Q

What is Strep. pyogenes?

A

Gram-positive cocci

Appear in strings/chains

Beta haemolytics

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Q

What is Staph. epidermidis?

A

Gram-positive cocci

Appear in clusters (like grapes)

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Q

What is Enterococcus faecalis?

A

Gram-positive rod

Commensal bacteria

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Q

What is Enterococcus faecium?

A

Gram-positive rod

Commensal bacteria

Can cause neonatal meningitis or endocarditis

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Q

What is Escherichia coli?

A

Gram-negative rod

Anaerobic

0157:H7 strain (EHEC) causes HUS

ETEC and EPEC cause food poisoning

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Q

What is Clostridioides difficile?

A

Gram-positive rod

Spore forming

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Q

What is Clostridium tetani?

A

Gram-positive rod

Causes tetanus

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Q

What is Clostridium botulinum?

A

Gram-positive rod

Causes botulism

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Q

What is Clostridium perifringens?

A

Gram-positive rod

Causes food poisoning

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Q

What is Listeria spp.?

A

Gram-positive rod

Anaerobic

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Q

What is Yersinia pestis?

A

Gram-negative coccobacillus

Non-motile

Caused The Plague

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Q

What is Helicobacter pylori?

A

Gram-negative helical-shaped/spiral

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Q

What is Campylobacter jejuni?

A

Gram-negative helical-shaped/spiral

“Curved rod”/”Comma shaped”/”S-shaped”

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Q

What is Treponema pallidum?

A

“Gram-negative” helical-shaped

Outer membrane lacks lipopolysaccharide

Causes syphilis

Q

What is Lactobacillus spp.?

A

Gram-positive rod

Q

What is Bacillus cereus?

A

Gram-positive rod

Fried rice food poisoning (heat stable)

Q

What is Bacillus anthracis?

A

Gram-positive rod

Q

What is Chlamydia trachomatis?

A

Gram-negative coccoid or rod-shaped

Looks like a protazoa

NAAT testing

Q

What is Salmonella spp.?

A

Gram-negative rod

Q

What is Vibrio cholerae?

A

Gram-negative comma

Q

What is Klebsiella pneumoniae?

A

Gram-negative rod

Q

What is Haemophillus influenzae?

A

Gram-negative coccobacillary bacteria

Chocolate agar

Q

What is Shigella spp.?

A

Gram-negative rod

Q

What is Neisseria meningitidis?

A

Gram-negative diplococcus

Q

What is Neisseria gonorrhoeae?

A

Gram-negative diplococcus

Q

What is Bordetella pertussis?

A

Gram-negative coccobacillus

Q

What is Legionella spp.?

A

Gram-negative coccobacillus

Q

What is Coxiella burnetii?

A

Gram-negative coccobacillus

Q

What is Bartonella henselae?

A

Gram-negative rod