Mold Quiz

Take this quiz about mold to learn more about the dangers of mold and how you can prevent it.

Mold Busters Quiz

1 / 10

According to some statistical overviews, what percentage Canadian homes have mold-free bathrooms?

a) 13%

b) 26%

c) 54%

a) 13%, and the most common types (in more than half cases) are from the Penicillium/Aspergillus group.

a) 13%, and the most common types (in more than half cases) are from the Penicillium/Aspergillus group.

2 / 10

What is the main reason of mold infestation throughout most households in the world?

a) Unhygienic living conditions

b) Type of building material

c) Excess moisture

c). Moisture is the crucial ingredient for mold to thrive. Generally, the most common reasons for indoor mold spread are plumbing and roof leaks, wet basements, bad yard drainage, and high humidity.

c). Moisture is the crucial ingredient for mold to thrive. Generally, the most common reasons for indoor mold spread are plumbing and roof leaks, wet basements, bad yard drainage, and high humidity.

3 / 10

Molds are genetically closest to:

a) Plants

b) Humans

c) Bacteria

b). Humans because the latest molecular studies have placed the kingdom of Fungi (where molds belong) and the kingdom of Animalia (where humans belong) into a superkingdom named Opisthokonta

The Tree of Life of the planet's organisms. (Photo source: Micallen0713, Wikimedia).

b). Humans because the latest molecular studies have placed the kingdom of Fungi (where molds belong) and the kingdom of Animalia (where humans belong) into a superkingdom named Opisthokonta

The Tree of Life of the planet's organisms. (Photo source: Micallen0713, Wikimedia).

4 / 10

According to some statistical overviews, what percentage of Canadian homes have mold-free basements?

a) 8%

b) 50%

c) 60%

The correct answer is 8%, and the most common types (in two-thirds of cases) belong to the Penicillium/Aspergillus group.

The correct answer is 8%, and the most common types (in two-thirds of cases) belong to the Penicillium/Aspergillus group.

5 / 10

Long-term exposure to mold spores can cause:

a) Allergies

b) Pneumonia

c) Eye infection

d) Necrotic tissue

e) All of the above

e) All of the above. Prolonged exposure to molds can induce many different health problems, with intensity depending from mild irritations in healthy people to life-threatening infections in immunocompromised patients.

e) All of the above. Prolonged exposure to molds can induce many different health problems, with intensity depending from mild irritations in healthy people to life-threatening infections in immunocompromised patients.

6 / 10

Why did the Italian botanist Pier Antonio Micheli give the genus Aspergillum its name?

a) Because fungi from the genus Aspergillum look like asparagus

b) Because fungi from the genus Aspergillum were discovered in the Asperg town, Germany

c) Because fungi from the genus Aspergillum look like the Christian Holy Water sprinkler device

a) they look like the Christian Holy Water sprinkler device, called aspergillum.

(up) Aspergillum (Photo Source: Pearson Scott Foresman, Wikipedia); (down) Aspergillus niger conidiophore (Photo source: Kathie Hodge, Flickr).

a) they look like the Christian Holy Water sprinkler device, called aspergillum.

(up) Aspergillum (Photo Source: Pearson Scott Foresman, Wikipedia); (down) Aspergillus niger conidiophore (Photo source: Kathie Hodge, Flickr).

7 / 10

What is the difference between molds and slime molds?

a) Slime molds are aquatic molds

b) Molds are fungi, while slime molds are not

c) There is no difference

b). Molds are multicellular, filamentous fungi, while slime molds belong to a more primitive group of organisms called the Protista, which form unicellular or colonial forms such as amoebas and primitive algae.

(left) slime mold (right) mold (Photo source: D. Sadikovic, Mold Busters)

b). Molds are multicellular, filamentous fungi, while slime molds belong to a more primitive group of organisms called the Protista, which form unicellular or colonial forms such as amoebas and primitive algae.

(left) slime mold (right) mold (Photo source: D. Sadikovic, Mold Busters)

8 / 10

How many children under the age of five succumb to the adverse effects of air pollution (particulates, mold, and bacteria), globally?

a) 6 000

b) 60 000

c) 600 000

c) 600 000. Furthermore, according to the UNICEF statistics, of all pneumonia-related mortalities of children under the age of five, half can be traced to air pollution.

c) 600 000. Furthermore, according to the UNICEF statistics, of all pneumonia-related mortalities of children under the age of five, half can be traced to air pollution.

9 / 10

What is the difference between yeasts and molds?

a) Yeasts are larger than molds

b) Yeasts reproduce by water, while molds spread through air

c) Number of cells

c) Number of cells. Molds are multicellular, filamentous organisms, while yeasts are aggregations of single-cell organisms which aggregate and act as an individual. Interestingly, some fungi can revert from a yeast form to a filamentous form, depending on certain ecological conditions.

Fungi under microscope;(left) Yeast (right) Mould (Photo source: Bob Blaylock, Wikimedia)

c) Number of cells. Molds are multicellular, filamentous organisms, while yeasts are aggregations of single-cell organisms which aggregate and act as an individual. Interestingly, some fungi can revert from a yeast form to a filamentous form, depending on certain ecological conditions.

Fungi under microscope;(left) Yeast (right) Mould (Photo source: Bob Blaylock, Wikimedia)

10 / 10

Certain molds can use one of the following to stimulate their growth:

a) Certain sound frequencies

b) Radiation

c) Fear hormones

b). Radiation. Some melanin-producing molds, such as Cladosporium sphaerospermum, can use radiation to increase the rate of their metabolism, eat more and grow several times faster. Interestingly, experiments conducted on the International Space Station showed the potential of these molds to be used for radiation shielding during long space flights.

Melanin-producing Cladosporium sphaerospermum colony (Photo source: Medmyco, Wikimedia)

b). Radiation. Some melanin-producing molds, such as Cladosporium sphaerospermum, can use radiation to increase the rate of their metabolism, eat more and grow several times faster. Interestingly, experiments conducted on the International Space Station showed the potential of these molds to be used for radiation shielding during long space flights.

Melanin-producing Cladosporium sphaerospermum colony (Photo source: Medmyco, Wikimedia)

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