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

Certain molds can use one of the following to stimulate their growth:

a) Certain sound frequencies

b) Radiation

c) Fear hormones

b). Radiation. Some melanin-producing molds, such as Cladosporium sphaerospermum, can use radiation to increase the rate of their metabolism, eat more and grow several times faster. Interestingly, experiments conducted on the International Space Station showed the potential of these molds to be used for radiation shielding during long space flights.

Melanin-producing Cladosporium sphaerospermum colony (Photo source: Medmyco, Wikimedia)

b). Radiation. Some melanin-producing molds, such as Cladosporium sphaerospermum, can use radiation to increase the rate of their metabolism, eat more and grow several times faster. Interestingly, experiments conducted on the International Space Station showed the potential of these molds to be used for radiation shielding during long space flights.

Melanin-producing Cladosporium sphaerospermum colony (Photo source: Medmyco, Wikimedia)

2 / 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)

3 / 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.

4 / 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)

5 / 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.

6 / 10

What are molds?

a) Fungi

b) Bacteria

c) Viruses

a). Molds are multicellular, filamentous organisms that belong to the kingdom of Fungi.

a). Molds are multicellular, filamentous organisms that belong to the kingdom of Fungi.

7 / 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.

8 / 10

Out of a hundred cases of chronic sinusitis (the most common chronic sinus infections), how many cases are mold-related?

a) 15

b) 56

c) 96

c) 96. A clinical survey discovered mold in mucus of 96% of patients suffering from chronic sinus infections, a disease which annually impacts more than 20 million adults U.S.

c) 96. A clinical survey discovered mold in mucus of 96% of patients suffering from chronic sinus infections, a disease which annually impacts more than 20 million adults U.S.

9 / 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.

10 / 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)

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