HW: clostridium & mycobacterium Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Which condition promotes germination of Clostridium tetani endospores during a tetanus infection?

A

anoxia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Clostridium difficile infections most often occur

A

following antibiotic treatment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

A cow is suffering from chronic watery diarrhea. It also exhibits symptoms such as emaciation and dry skin and hair coat. A delayed hypersensitivity intra-dermal test with Johnin purified protein was positive. The disease in cow is caused by

A

mycobacterium paratuberculosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Clostridium botulinum is a gram-________ rod that produces an ________.

A

positive-endospore forming/ exotoxin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

In the case of ________, ONLY the neurotoxin is required to cause food poisoning. So, antibiotics will NOT help cure the disease, and destroying the cells in food processing will NOT prevent disease if the neurotoxin is already formed.

A

botulism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which of the following is TRUE of tuberculosis?

A

the causative agent can remain dormant in macrophages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is the natural reservoir of clostridium tetani

A

soil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

During sporulation, Clostridium perfringens produces ________, which typically cause food poisoning symptoms ________ after consumption of contaminated food.

A

enterotoxins 7-15 hrs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Tetanus develops from a puncture wound because

A

the organism’s endospores germinate in anoxic conditions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Destroyed tissue throughout the lungs and the presence of acid-fast bacteria in a sputum sample likely indicate infection by

A

mycobacterium tuberculosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Death from tetanus is usually due to

A

respiratory failure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Hyperbaric oxygen can be used to treat

A

gas gangrene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Select the false statement regarding Mycobacterium spp.

A

M. leprae is usually easy to grow in artificial media

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Transmission of Mycobacterium leprae involves

A

both direct contact and the respiratory route

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Individuals who have an active case of tuberculosis may spread the disease simply by ________ uninfected individuals.

A

coughing near

How well did you know this?
1
Not at all
2
3
4
5
Perfectly