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

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.

2 / 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.

3 / 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).

4 / 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)

5 / 10

What causes black mouldy bread?

a) Rhizopus fungi

b) Ants

c) Penicillium fungi

a). Rhizopus fungi create black mold spots on old bread. It is never safe to eat mouldy bread as ingesting black mold can cause nausea, vomiting, and allergic reactions.

a). Rhizopus fungi create black mold spots on old bread. It is never safe to eat mouldy bread as ingesting black mold can cause nausea, vomiting, and allergic reactions.

6 / 10

What is the molds function in an ecosystem?

a) To infect weaker organisms, thus strengthening a population

b) To recycle organic matter

c) To make symbiosis with plants and help them grow

b) To recycle organic matter through decomposition and mineralization. In fact, everything lignin-containing can only be dissolved by saprophytic fungi, without which life on this planet wouldn’t be possible due to sheer amounts of debris formed by undecomposed plant material.

Nutrient cycle (Photo source: Jakob Assmann)

b) To recycle organic matter through decomposition and mineralization. In fact, everything lignin-containing can only be dissolved by saprophytic fungi, without which life on this planet wouldn’t be possible due to sheer amounts of debris formed by undecomposed plant material.

Nutrient cycle (Photo source: Jakob Assmann)

7 / 10

The blue-green veins in cheeses such as Gorgonzola and Roquefort originate from

a) Molds

b) Bacteria

c) Food colouring

a). The blue veins are the result of Penicillium molds forming colonies in the presence of air. This cheese, even though technically spoiled, is considered safe and a delicacy.

a). The blue veins are the result of Penicillium molds forming colonies in the presence of air. This cheese, even though technically spoiled, is considered safe and a delicacy.

8 / 10

How did the Penicillium mold got their name?

a) Because they look like pencils

b) Because of their smell

c) Because they look like paintbrushes

c) Because they look like paintbrushes – The entire genus Penicillium got its name because their spore-bearing structures look like paintbrushes, which are called “penicilli” in Latin.

Penicillium sp. conidiophore (Photo source: AJC1, Wikimedia).

c) Because they look like paintbrushes – The entire genus Penicillium got its name because their spore-bearing structures look like paintbrushes, which are called “penicilli” in Latin.

Penicillium sp. conidiophore (Photo source: AJC1, Wikimedia).

9 / 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.

10 / 10

What is the most common toxic mold types found in Canadian and U.S. homes?

a) Penicillium/Aspergillus group

b) Chaetomium

c) Stachybotrys

d) Alternaria

a) Penicillium/Aspergillus mold are the most common mold type in 38% of the investigated households.

a) Penicillium/Aspergillus mold are the most common mold type in 38% of the investigated households.

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