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

Treating mold on walls using bleach will:

a) Kill the mold

b) Stop the mold from spreading

c) Contaminate the space with dangerous evaporations

c). Applying bleach to a mouldy wall will only contaminate the space with dangerous evaporations. Bleach only destroys the superficial part of the organism, while the rest of the mold and its spores can survive and continue to spread.

c). Applying bleach to a mouldy wall will only contaminate the space with dangerous evaporations. Bleach only destroys the superficial part of the organism, while the rest of the mold and its spores can survive and continue to spread.

2 / 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.

3 / 10

What causes green mouldy bread?

a) Aspergillus fungi

b) Algae

c) Penicillium fungi

c). Penicillium fungi are the most frequent cause of the green mold spots on old bread. Mouldy bread is not safe to eat as some green mould species can produce mycotoxins.

(Photo source: Henry Mühlpfordt, Wikimedia)

c). Penicillium fungi are the most frequent cause of the green mold spots on old bread. Mouldy bread is not safe to eat as some green mould species can produce mycotoxins.

(Photo source: Henry Mühlpfordt, 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

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.

6 / 10

The most dangerous way you can mold exposure is by:

a) Skin contact

b) Ingestion

c) Inhalation

d) All of the above

d) All of the above. Furthermore, prolonged exposure to mold can manifest in symptoms ranging from rashes, allergies and flu-like symptoms to neurological damage and even death.

d) All of the above. Furthermore, prolonged exposure to mold can manifest in symptoms ranging from rashes, allergies and flu-like symptoms to neurological damage and even death.

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

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).

9 / 10

Evolutionary speaking, which group was the first to developed weapons against pathogenic molds?

a) Humans

b) Ants

c) Bees

b) Ants. For more than 50 million years, leaf-cutter ants have been cultivating certain fungi which form mushroom-like structures to feed their larvae. This food source is constantly being attacked by molds. In order to protect their crops, these ants have learned to additionally cultivate certain types of microorganisms, which have antibiotic properties against the pathogenic mold.

Atta columbica queen with workers on fungal substrate (Photo source: Christian R. Linder, Wikimedia)

b) Ants. For more than 50 million years, leaf-cutter ants have been cultivating certain fungi which form mushroom-like structures to feed their larvae. This food source is constantly being attacked by molds. In order to protect their crops, these ants have learned to additionally cultivate certain types of microorganisms, which have antibiotic properties against the pathogenic mold.

Atta columbica queen with workers on fungal substrate (Photo source: Christian R. Linder, Wikimedia)

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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