SECTION 5: GRAM POSITIVE NON-ENDOSPORE FORMING BACILLI

Question 1

Are Corynebacterium and/or Listeria sp. part of the normal flora?

Answer 1

Cornebacterium is part of the normal flora of the throat

Listeria is not

Question 2

How does Propionibacterium acnes contribute to acne?

Answer 2

Produces lipases that split fatty acids from skin lipids. Fatty acids produce tissue inflammation

Question 3

What do Volutin granules store?

Answer 3

They are full of Phosphate

Question 4

Why discovered diptherial poison?

Answer 4

Roux and Yersin (1888)

Question 5

What do diptherial Toxin A fragments inhibit?

Answer 5

inhibits cellular protein synthesis and is responsible for local tissue destruction and membrane formation

Question 6

A patient presents with a mild sore (swollen) throat/fever, witish gray membrane forms in throat, paralysis of soft palate and eye mm, what do they have and what else could happen?

Answer 6

Have Diptheria

• membrane can become detached and obstruct airway
• toxin absorbed in bloodstream results in toxic damage to kidneys, heart, and extremity nerve damage

Question 7

Can Listeria grow in the refrigerator? (4 degrees C)

Answer 7

Yes

Question 8

Is Listeria motile at normal body temperature?

Answer 8

No

-motile at 22-28 degrees C