lesson 9

Which of the following statements is incorrect regarding Gram negative bacteria

• Cell wall has a thin peptidoglycan layer

• cell wall lipid layer is very low

• outer membrane is present

• all of the above

which of the following microorganisms cannot cause bone infection

• Staphylococcus aureus

• E.coli

• Clostridium botulium

• Vibrio cholerea

The food most likely to be contaminated with botulism toxin is:

• Raw tuna

• Home-canned food

• Raw eggs

• A mayonnaise-based salad at summer picnic

One way parents can help prevent botulism in a baby is to:

• have the child vaccinated

• stay away from swimming pools

• not give honey to a child under 1 year old

• all of the above

which of these microbes can be used for bioterrorism

• Clostridium botulium

• Staphylococcus aureus

• bacillus

• E. coli

A watery stool sample was collected from the 5 year old boy who is suffering from diarrhea for 2 days. After the incubation in high pH media containing NaCl, smooth and round colonies appeared. Gram-negative, motile, comma-shaped bacteria were observed after the microscopic examination. Name the possible bacteria.

• staphylococcus aureus

• Clostridium botulium

• E.coli

• Vibrio Cholera

All of the following are the general symptoms of cholera infections, except?

• high-grade fever

• diarrhea

• dehydration

• vomiting

cholera is spread through

• bite of female Anopheles mosquito

• through contaminated water

• neurotoxin

• through thr cough droplets from an infected person

what is the name of this bacteria?

• Staphylococcus aureus

• E.coli

• Clostridium botulium

• Vibrios cholera

What is the shape of this bacteria?

• Rod shaped

• curved rod shape

• coccus

• spiral shape