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MICR 290 FINAL EXAMINATIONS QUESTIONS WITH REVISED ANSWERS $13.19   Add to cart

Exam (elaborations)

MICR 290 FINAL EXAMINATIONS QUESTIONS WITH REVISED ANSWERS

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  • Course
  • MICR 290
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  • MICR 290

MICR 290 FINAL EXAMINATIONS QUESTIONS WITH REVISED ANSWERS Clostridium perfringens - Answer--Causes gas gangrene -Bacterial endospores survive harsh conditions -vegetative cells secrete 11 toxins Clostridium tetani - Answer--Causes tetanus -Spores grow in deep wound and vegetative c...

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  • August 29, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MICR 290
  • MICR 290
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MICR 290 FINAL EXAMINATIONS
QUESTIONS WITH REVISED
ANSWERS

Clostridium perfringens - Answer--Causes gas gangrene

-Bacterial endospores survive harsh conditions

-vegetative cells secrete 11 toxins

Clostridium tetani - Answer--Causes tetanus

-Spores grow in deep wound and vegetative cells produce neurotoxin called
tetanospasmin

-Blocks release of inhibitory neurotransmitters at the neuromuscular junction

Corynebacterium diphtheriae - Answer--Causes diphtheria

-Toxin is the most important virulence factor

-Diphtheria toxin: prevents polypeptide synthesis and causes cell death

Escherichia coli - Answer--Causes most cases of bacterial urinary tract infections

-Enteric bacteria are most common cause

Haemophilus influenza - Answer--Cause bacterial meningitis (encapsulated)

-Gram - pleomorphic rods

-All airborne (transmitted via respiratory droplets)

-Vaccine available, has dropped disease in young children intensely

Helicobacter pylori - Answer-Causes peptic ulcers

Mycobacterium tuberculosis - Answer-Causes tuberculosis

, Neisseria meningitidis - Answer--Causes bacterial epidemic meningitis in college
freshmen

-Gram -

-Vaccine available

Neisseria gonorrhoeae - Answer-Causes gonorrhea

Propionibacterium acnes - Answer--Causes acne

-Normal microbiota (commonly found on skin)

Psuedomonas aeruginosa - Answer--Causes pseudomonas infection

-Infections don't commonly occur in healthy individuals

Staphylococcus aureus - Answer--Commonly found on skin/normal microbiota

-Causes bacterial food poisoning

-Some strains cause staphylococcal toxic shock syndrome and staphylococcal scalded
skin syndrome

-Causes most cases of impetigo (pyoderma) and erysipelas

-Cause folliculitis

Staphylococcus epidermidis - Answer--Commonly found on skin/normal microbiota

-Cause folliculitis

Streptococcus agalactiae (GBS) - Answer--Group B step

-Gram +

-Causes bacterial meningitis that is acquired during birth

Streptococcus mutans (viridans streptococci) - Answer--Frequent cause of dental
caries, viridans streptococci are most prevalent on tongue and teeth

-Cause almost half the cases of endocarditis

Streptococcus pneumoniae - Answer--Causes penumoccocal (bacterial) pneumonia in
very young and old, vaccine available

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