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 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)

2 / 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).

3 / 10

What are the chances of developing respiratory or asthma-related health problems due to the building dampness and mold exposure?

a) 30-50%

b) 1-5%

c) 100%

a) 30-50%. Studies show that consistent associations of dampness with adverse health effects, strongly suggesting a causation by dampness-related exposures.

a) 30-50%. Studies show that consistent associations of dampness with adverse health effects, strongly suggesting a causation by dampness-related exposures.

4 / 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.

5 / 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)

6 / 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)

7 / 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.

8 / 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.

9 / 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).

10 / 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).

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