Foundations in Microbiology Chapter 19 Exam Questions with Verified Solutions (Graded A+)

Foundations in Microbiology Chapter 19 Exam Questions with Verified Solutions (Graded A+) Gram positive Bacterias - Answers 1. Bacillus cereus 2. Streptococcus 3. Staplococcus 4. Clostridium 5. Corynebacterium 6. Listeria Acid- Fast Bacterias - Answers Mycobacterium Wall- less - Answers Mycoplasma Gram Negative Bacteria - Answers Everything else Gram positive - Bacilli - Answers 1. Bacillus 2. Clostridium 3. Listeria 4. Corynebacterium Gram Positive - Cocci - Answers 1. Staphylococcus 2. Streptococcus Gram Positive Bacilli - Answers -Bacillius anthracis -Bacillius cereus Gram Positive Clostridium = (Bacilli) - Answers -Clostridium perfringens -Clostridium tetani -Clostridium difficile -Clostridium botulinum Gram Positive Listeria = (Bacilli) - Answers -Listeria monocytogenes Gram Positive Corynebacterium = (Bacilli) - Answers -Corynebacterium diptheriae Gram Positive Staphylococcus = (Cocci) - Answers -Staphylococcus aureus -Staphylococcus epidermidis -Staphylococcus saprophyticus Gram Positive Streptococcus = (Cocci) - Answers -Streptococcus pyogenes -Streptococcus agalactiae -Streptococcus mutans -Streptococcus pneumoniae Acid-Fast = (Bacilli) - Answers -Mycobacterium leprae -Mycobacterium tuberculosis -Mycobacterium avium-intracellulare -Mycobacterium ulcerans Wall-Less - Answers -Mycoplasma pneumoniae Endospore formers - Answers -Bacillus -Clostridium Non-Endospore formers - Answers -Corynbacterium -Listeria -Propionibacterium Propionibacterium - Answers Gram positive, cause acne Bacillus anthracis - Answers Gram positive Morphology: rods Arrangement: streptobacillus Disease: Anthrax Treatment: penicillin, tetracycline or ciprofloxacin Spores develop under all conditions except living body Virulence factors: polypeptide capsule and exotoxins Bacillus cereus - Answers Gram positive Morphology: rods Arrangement: streptobacillus Disease: Food Posioning Treatment: None- nausea, diarrhea; 24 hour duration Mostly saprobic; endospore forming Versatile in degrading complex macromolecules Source of antibiotic Primary habitat: soil Bacillus anthracis -- Four types of Anthrax - Answers 1. Cutaneous ***Spores eneter skin*** 2. Gastrointestinal ***ingested spores*** 3. Pulmonary ***Inhalation of spores***WOOL SODEER DISEASE*** 4. Injectional ***People who inject drugs (PWID)*** What are the two species of medical importance? - Answers Bacillius cereus = motile Bacillius anthracis = nonmotile (Streptobacillius) Clostridium perfringens - Answers Gram positive Morphology: rods Arrangement: ---- Disease: gas gangrene Transmission: Perennial Spores found in soil; human skin; intestine Tissue necrotic breaks down tissue and muscle (myonecrosis) Pathology: Fermentation of muscle carbohydrates results in the formation of gas and further tissue destruction Treatment: Cleaning dirty wounds; use Hyperbaric chamber NO VACCINES Found in gun shot wounds, surgical incisions, diabetic ulcers