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

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.

3 / 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.

4 / 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.

5 / 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).

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

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)

8 / 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.

9 / 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.

10 / 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)

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