Question 1

Write about some ways to prevent any contamination in lab while making sub-cultures.

Accepted Answer

There are several ways to prevent contam...

Question 2

Which genus is the most common resident flora of mouth surfaces?

Accepted Answer

A)  Lactobacillus
B)  Streptococcus
C)  Haemophilus
D)  Escherichia
E)  MycobacteriumF) A) and E)
G) A) and D)

Question 3

The subjective evidence of disease sensed by the patient is termed

Accepted Answer

A)  syndrome.
B)  symptom.
C)  sign.
D)  pathology.
E)  inflammation.F) A) and C)
G) B) and E)

Question 4

Which is mismatched?

Accepted Answer

A)  secondary infection - infection spreads to several tissue sites
B)  mixed infection - several agents established at infection site
C)  acute infection - rapid onset of severe, short-lived symptoms
D)  local infection - pathogen remains at or near entry site
E)  toxemia - pathogen's toxins carried by the blood to target tissuesF) A) and C)
G) A) and B)

Question 5

Universal precautions is designed to protect

Accepted Answer

A)  patients.
B)  health care providers.
C)  the general public.
D)  All of these choices are correct.E) A) and B)
F) C) and D)

Question 6

A person with which occupation is most at risk for a zoonotic disease?

Accepted Answer

A)  accountant
B)  teacher
C)  nurse
D)  dental hygienist
E)  forest rangerF) A) and E)
G) A) and C)

Question 7

Enterotoxins are

Accepted Answer

A)  virulence factors.
B)  toxins that target the intestines.
C)  proteins.
D)  exotoxins.
E)  All of these choices are correct.F) D) and E)
G) B) and D)

Question 8

_____ are toxins that are the lipopolysaccharide of the outer membrane of gram-negative cell walls.

Accepted Answer

The answer of _____ are toxins that are the lipopolysaccharide...

Question 9

A fetus can get an infection when a pathogen in the mother's blood is capable of crossing the placenta to the fetal circulation and tissues.

Accepted Answer

A) True 
 B)False

Question 10

The Centers for Disease Control and Prevention assigns the most virulent microbes known to cause human disease to Biosafety Level 4.

Accepted Answer

A) True 
 B)False

Question 11

Septicemia means that a pathogen is present and multiplying in the blood.

Accepted Answer

A) True 
 B)False

Question 12

Under certain circumstances, a person's resident flora can be opportunistic pathogens.

Accepted Answer

A) True 
 B)False

Question 13

The primary, natural habitat of a pathogen where it continues to exist is called the

Accepted Answer

A)  fomite.
B)  carrier.
C)  vector.
D)  reservoir.
E)  source.F) B) and C)
G) B) and E)

Question 14

All of the following are correct about mechanical vectors, except

Accepted Answer

A)  cockroaches are an example.
B)  the vector can carry the pathogen on its feet and mouthparts.
C)  the vector is important to the life cycle of the infectious agent.
D)  they can spread viral, bacterial, protozoan, and worm infections.
E)  some, like flies feed on garbage and feces.F) A) and B)
G) B) and E)

Question 15

All of the following are signs of infectious diseases, except

Accepted Answer

A)  fever.
B)  leucopenia.
C)  swollen lymph nodes.
D)  antibodies in serum.
E)  nausea.F) B) and D)
G) All of the above

Question 16

An inanimate object that harbors and transmits a pathogen is a

Accepted Answer

A)  fomite.
B)  carrier.
C)  vector.
D)  reservoir.
E)  source.F) A) and D)
G) A) and E)

Question 17

STORCH is an acronym that represents the most common

Accepted Answer

A)  genera of resident flora.
B)  sexually-transmitted diseases.
C)  portals of entry.
D)  vectors.
E)  infections of the fetus and neonate.F) B) and D)
G) A) and C)

Question 18

When an infected person is in the incubation period, that person cannot transmit the pathogen to others.

Accepted Answer

A) True 
 B)False

Question 19

Which is mismatched?

Accepted Answer

A)  fimbriae - adherence to substrate
B)  capsules - antiphagocytic factor
C)  coagulase - dissolve fibrin clots
D)  leukocidins - damage white blood cells
E)  hemolysins - damage red blood cellsF) B) and C)
G) A) and E)

Question 20

Infection occurs when

Accepted Answer

A)  contaminants are present on the skin.
B)  a person swallows microbes in/on food.
C)  a person inhales microbes in the air.
D)  pathogens enter and multiply in body tissues.
E)  All of these choices are correct.F) All of the above
G) A) and B)

Exam 13: Microbe-Human Interactions: Infection and Disease

Infection occurs when

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Which genus is the most common resident flora of mouth surfaces?

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All of the following are signs of infectious diseases, except

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When an infected person is in the incubation period, that person cannot transmit the pathogen to others.

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The primary, natural habitat of a pathogen where it continues to exist is called the

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Write about some ways to prevent any contamination in lab while making sub-cultures.

Correct AnswerAnswered by ExamLex AIThere are several ways to prevent contam...View AnswerShow Answer

All of the following are correct about mechanical vectors, except

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A person with which occupation is most at risk for a zoonotic disease?

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The Centers for Disease Control and Prevention assigns the most virulent microbes known to cause human disease to Biosafety Level 4.

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Enterotoxins are

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Universal precautions is designed to protect

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STORCH is an acronym that represents the most common

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The subjective evidence of disease sensed by the patient is termed

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Septicemia means that a pathogen is present and multiplying in the blood.

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An inanimate object that harbors and transmits a pathogen is a

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Which is mismatched?

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_____ are toxins that are the lipopolysaccharide of the outer membrane of gram-negative cell walls.

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A fetus can get an infection when a pathogen in the mother's blood is capable of crossing the placenta to the fetal circulation and tissues.

Correct AnswerverifiedShow Answer

Under certain circumstances, a person's resident flora can be opportunistic pathogens.

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Which is mismatched?

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