1. Each summer in MA illnesses caused by the vibrio parahaemolyticus trigger man

Question

1. Each summer in MA illnesses caused by the vibrio parahaemolyticus trigger mandatory a 14-day federally mandated ban on the barvesting and or process of oysters from the locations where oysters are originated. Heavy rains and warm water temp. provide ideal conditions for the V. parahaemolytics pathogen whose symptoms are trigerred by the ingesting of a toxin made by this pathogens. The symptoms include abdominal pain, cramps, nausea, vomiting, watery or bloody diarrhea, fever, and headache for up to three days. V. parahavmolyticus is a natural inhabitant of the marine ecosystem and contaminated shelfish cannot be discerned by either taste or smell. This type of foodborne disease is referred to as:

a. An intoxication

b. An exotoxin

c. A cross contamination

d. Botulism

e. Anaphylaxis

I think it's a cross contamination but what do you say?

2. The antibiotics tested for Staphylococcus epidermis (Gentamycin, Nonvobiocin, Penicillin) have in common that all three:

a. Target both Gram positive and Gram negative bacteria

b. Inhibit DNA gyrase

c. Are narrow spectrum antibiotics

d. bind with bacterial ribosomes

e. Inhibit the formation of peptidoglycan cross-links

3. Match the following

A. Teichoic acid:
B. Direct Stains:
C: Chormophore:
D: Differential stain:

E: Acidic Dyes

1. Exclusively found in Gram positive cell walls

2. Uses positive ions which are attracted to the negtaive cell membrane

3. Two or more dyes are used to identify

4. Repulsion of these chromophores results in negative stains

5. A colored component of a salt dissolved in a liquid

4. Match each description with the appropriate term

a. Maintain at or above 20C

b. Microfloral location in the human body of S. epidermis

c. Used to neutralize spilled acids

d. Used isolating a pure culutre from a mixed or contaminated culture

e. Microfloral location in the human body of E. coli

1. Skin

2. Gastrointesetinal Tract

3. Mcrobe Cultivation temperature

4. Aseptic Techinque

5. Baking Soda

5. Please explain why the inoculated plates are inverted during incubation

Explanation / Answer

1)d )cross contamination

The disease is caused by a bacteria is gram positive bacteria produces toxins which is food borne.

You are correct it is cross contamination it us a process by which microorganisms are unintentionally transferred to othe organisms.

2)a

Target both gram positive and gram negative bacteria they act against both type of bacteria s

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