CMI Mold Biology & Ecology

Question 1

What is the primary reproductive structure of mold that allows it to spread through the air?

Accepted Answer

Spores

Answer

Hyphae

Answer

Mycelium

Answer

Rhizoids

Question 2

Which of the following best describes the vegetative body of a mold fungus?

Accepted Answer

Mycelium

Answer

Spore

Answer

Conidium

Answer

Basidiospore

Question 3

At approximately what minimum relative humidity do most common indoor molds begin to grow?

Accepted Answer

60%

Answer

30%

Answer

40%

Answer

80%

Question 4

Which fungal genus is commonly called 'black mold' and requires chronically wet, cellulose-rich materials to grow?

Accepted Answer

Stachybotrys

Answer

Aspergillus

Answer

Cladosporium

Answer

Penicillium

Question 5

What is the term for the individual thread-like filaments that collectively form the body of a mold?

Accepted Answer

Hyphae

Answer

Conidiophores

Answer

Sporangia

Answer

Rhizomorphs

Question 6

Which term describes a mold adapted to grow in low-moisture or dry environmental conditions?

Accepted Answer

Xerophilic

Answer

Thermophilic

Answer

Hydrophilic

Answer

Mesophilic

Question 7

What is the primary nutrient source for most molds found growing on indoor building materials?

Accepted Answer

Cellulose and other organic materials

Answer

Minerals in concrete

Answer

Nitrogen in the air

Answer

Iron compounds in metal pipes