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

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.

3 / 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)

4 / 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)

5 / 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).

6 / 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).

7 / 10

Chemical structure of cellular walls of mold fungi is similar to:

a) Plants

b) Lobsters

c) Armadillos

b) Lobsters, because the shell of arthropods (crustations, insects, spiders, and such animals) and the cell walls of fungi (molds) are made of chitin, a structural polysaccharide (sugar) molecule.

The cell wall structure of Fungi (Photo source: Maya and Rike, Wikimedia)

b) Lobsters, because the shell of arthropods (crustations, insects, spiders, and such animals) and the cell walls of fungi (molds) are made of chitin, a structural polysaccharide (sugar) molecule.

The cell wall structure of Fungi (Photo source: Maya and Rike, Wikimedia)

8 / 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.

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

The first antibiotic was extracted from:

a) A mushroom

b) A mold

c) A rare plant

b). Penicillin, the first antibiotic, was isolated and discovered in 1928 by Dr. Alexander Fleming from Penicillium mold.

b). Penicillin, the first antibiotic, was isolated and discovered in 1928 by Dr. Alexander Fleming from Penicillium mold.

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