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 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)

2 / 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.

3 / 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.

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 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.

6 / 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.

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

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)

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 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)

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