Bacilli Quiz

What does B. cereus produce that causes symptoms associated with food poisoning, such as vomiting and diarrhea?

• Toxins

• Poisons

• Endospores

• Bacteria

2. Humans become infected with Mycobacterium tuberculosis most frequently by:

• Inhalation

• Contact

• Ingestion

• Inoculation

It is a differential medium used to test the ability of an organism to produce hemolysins, enzymes that damage or lyse red blood cells.

• Selective Step Agar

• Eosin Methylene Blue

• Acid Fast Stain

• Blood Agar Plates

3. McFadyean's reaction is employed for the presumptive diagnosis.

• Tetanus

• Typhoid

• Anthrax

• Pulmonary tuberculosis

Antibodies to which of the following antigens of Bacillus anthracis are protective?

• Capsular polypeptide

• Somatic polysaccharide

• Anthrax toxin

• Peptidoglycan

6. Spores are formed in soil or culture but never in animal body during life.

• True

• False

Long interlacing chains of bacilli resembling locks of matted hair ______.

• Polypeptide

• Truncated

• Bamboo stick

• Medusa head

8. Consist of anaerobic bacilli forming heat resistant spores.

• True

• False

Which differs from the group?

• Hydrophilic

• Psychrophilic

• Mesophilic

• Thermophilic

It causes foodborne gastroenteritis.

• B. megaterium

• B. subtilis

• B. licheniformis

• B. cereus