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Worksheets

PBS 3.1

Total questions: 55

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

Pathogen is defined as:

a)

An organism in which another organism lives

b)

The establishment of a disease-causing organism within a host

c)

A disease-causing organism

d)

A disorder of function in an organism that results in symptoms

2.

This non-living infectious agent, which causes the flu, cannot replicate on its own & infects healthy cells as hosts.

a)

Prions

b)

Viruses

c)

Bacteria

d)

Fungi

e)

Helminths

3.

This living infectious agent, also known as worms, is acquired through consumption of contaminated food or water and often causes rapid weight loss.

a)

Prions

b)

Viruses

c)

Bacteria

d)

Fungi

e)

Helminths

4.

This non-living infectious protein causes normal brain proteins to fold abnormally, leading to neurological symptoms (confusion, hallucinations).

a)

Prions

b)

Viruses

c)

Bacteria

d)

Fungi

e)

Helminths

5.

This living, animal-like infectious agent thrives in the digestive tract of a host, depriving the host of nutrients from food and can sometimes be treated with antiprotozoal medication.

a)

Prions

b)

Viruses

c)

Bacteria

d)

Fungi

e)

Protists

6.

This common living infectious agent, which cause tuberculosis (TB), can be acquired in a variety of ways and can be treated with antibiotics.

a)

Prions

b)

Viruses

c)

Bacteria

d)

Fungi

e)

Protists

7.

This living, multicellular infectious agent, which causes athlete's foot, includes mildews, molds, and mushrooms.

a)

Prions

b)

Viruses

c)

Bacteria

d)

Fungi

e)

Protists

8.

An infected individual hugs an uninfected individual, depositing the pathogen on the new person. This form of disease transmission is an example of:

a)

Direct Contact

b)

Indirect Contact

c)

Droplet Transmission

d)

Vector Transmission

9.

An infected individual pays at the grocery store with infected cash, spreading the pathogen to the cashier. This form of disease transmission is an example of:

a)

Direct Contact

b)

Indirect Contact

c)

Droplet Transmission

d)

Vector Transmission

10.

West Nile Virus is spread through in intermediate insect that carries the pathogen: mosquitos. This form of disease transmission is an example of:

a)

Direct Contact

b)

Indirect Contact

c)

Droplet Transmission

d)

Vector Transmission

11.

When infectious pathogens enters the body, white blood cells (B-cells), produce THESE molecules to attack or impair the pathogens:

a)

Antigens

b)

Antibodies

c)

Toxins

d)

Vaccines

12.

The cause of a disease or condition is called

a)

etiology

b)

exposure

c)

mycobacter

d)

treatment

13.

The shape of this bacteria

a)

bacillus

b)

coccus

c)

sprillum

14.

This bacteria is gram

a)

positive

b)

negative

15.
?
a)
coccus
b)
bacillus
c)
spirilla
d)
none of these
16.

What is a bacterial colony?

a)

solidifying gel-like agent used for growth media

b)

a technique used to thin out bacterial growth

c)

a visible clump of bacterial growth on an agar plate separate from other areas of growth

d)

a population of microorganisms grown under well-defined conditions

17.

__________ are disease detectives.

a)

CEOs

b)

Reporters

c)

Epidemiologists

d)

Infants

18.

The branch of medical science that deals with causes and control of health problems in the population is called:

a)

Pathology

b)

Epidemiology

c)

Entomology

d)

Histology

19.

Pathogen is defined as:

a)

An organism in which another organism lives

b)

The establishment of a disease-causing organism within a host

c)

A disease-causing organism

d)

A disorder of function in an organism that results in symptoms

20.

When infectious pathogens enters the body, white blood cells (B-cells), produce THESE molecules to attack or impair the pathogens:

a)

Antigens

b)

Antibodies

c)

Toxins

d)

Vaccines

21.
Plates should be incubated
a)

agar side up (upside down)

b)

agar side down (rightside up)

c)
it doesn't matter
22.

Identify the shape of bacteria

a)

cocci

b)

bacillus

c)

sprilla

d)

vibrio

23.

The First Word in a bacterial name is the:

a)

Species

b)

Type

c)

Shape

d)

Genus

24.

The second word in a bacterial name is the:

a)

Genus

b)

Shape

c)

Color

d)

Species

25.

The branch of medical science that deals with causes and control of health problems in the population is called:

a)

Pathology

b)

Epidemiology

c)

Entomology

d)

Histology

26.

True of False: All microbes cause disease.

a)

True

b)

False

27.

A sudden occurrence of disease in a localized area would be a(n) ____.

a)

outbreak

b)

endemic

c)

pandemic

d)

All of the others.

28.
What category of immune response would sneezing and mucus production fall under?
a)
Innate Immunity
b)
Acquired Immunity
c)
Humoral Immunity
d)
Cell Mediated Immunity
29.

Which of the following is found on the surface of pathogens causing an immune response

a)

Antibody

b)

Antigen-binding site

c)

Prostaglandin

d)

Antigen

30.

Specialized proteins that attach to specific antigens

a)

Innate Immunity

b)

Antigen

c)

Antibodies

d)

Leukocytes

31.

What does a high R-0 for a disease-causing agent mean?

a)

The disease is more contagious (spreads quicker)

b)

The disease is less contagious (spreads slower)

32.

The R0 for a new virus was measured to be 1.5. What does this mean?

a)

1.5% of the population needs to be vaccinated

b)

98.5% of the population needs to be vaccinated

c)

One infected person will infect, on average, 1.5 people

d)

One infected person will infect less than 1.5 people

33.

Which type of bacteria has a thinner cell wall but two membranes?

a)

Gram positive

b)

Gram negative

34.

These bacteria are

a)

gram positive

b)

gram negative

35.
Plates should be incubated
a)
agar side up
b)
agar side down 
c)
it doesn't matter
36.

These bacteria are:

a)

both gram positive and gram negative

b)

gram positive

c)

gram negative

37.

Colony morphology involves all of the following traits/characteristics except ...

a)

form

b)

elevation

c)

margins

d)

cell shape

38.

A bacterial population derived from one bacterial cell is called a

a)

colony

b)

township

c)

nation

d)

island

39.

Why is it important that the Petri plates are incubated upside down?

a)

To get dense colonies

b)

To get mat culture

c)

To get colonies with reduced growth

d)

To prevent moisture from condensing onto the agar surface

40.

A disease perpetually present in a community or population within a specific geographic area.

a)

Outbreak

b)

Endemic

c)

Pandemic

41.

An epidemic that has spread across several countries or continents and affects a large number of people.

a)

Pandemic

b)

Outbreak

c)

Endemic

42.

An infection acquired in a hospital; also known as a hospital-acquired infection or HAI.

a)

Virus

b)

Nosocomial

c)

Bacteria

43.

The establishment of a disease-causing microorganism within a host

a)

Host

b)

Disease

c)

Infection

d)

pathogens

44.

What is a bacterial colony?

a)

solidifying gel-like agent used for growth media

b)

a technique used to thin out bacterial growth

c)

a visible clump of bacterial growth on an agar plate separate from other areas of growth

d)

a population of microorganisms grown under well-defined conditions

45.

A type of bacteria belongs to the species epidermis and the genus staphylococcus. What is the correctly written scientific name for the bacteria?

a)

Staphylococcus epidermis

b)

Epidermis staphylococcus

c)

Epidermis staphylococcus

d)

Staphylococcus epidermis

46.
The goal of streak-plating is
a)
to obtain pure colonies
b)
to see what all grows
c)
to count the total number of colonies
d)
to diagnose disease
47.

In aseptic technique, when should lab bench tops be cleaned with disinfectant solution?

a)
Never, take a chance!
b)
At the beginning and end of lab.
c)
Only at the end.
48.

What is the goal of aseptic techniques?

a)

To prevent contamination of the worker and other people only

b)

To prevent contamination of the environment only

c)

To prevent contamination of the worker, other people, and the environment

49.
Plates should be incubated
a)
agar side up
b)
agar side down 
c)
it doesn't matter
50.

What is the first thing you should do in aseptic technique?

a)
put on gloves
b)
wash your hands
c)
sterilize your workspace
51.

What is the last thing you should do in aseptic technique?

a)
take off your gloves
b)
wash your hands
c)
sterilize your workspace
52.

What is the inoculation loop used for?

a)

Nutrients for bacteria

b)

Sterilising equipment

c)

Collecting/spreading bacteria

d)

Stopping contamination

53.
What will be the total magnification if the ocular lens is 10X and the objective lens is 40X?
a)
40X
b)
10X
c)
100X
d)
400X
54.

True of False: If the coarse and fine focus knobs are not turning, you should force them to turn.

a)

True

b)

False

55.

Which objective lens should you start on to locate an image?

a)

scanning power

b)

low power

c)

high power