CMA Mold Identification & Types 2

Question 1

Which mold genus is most commonly associated with water-damaged drywall and is often referred to as 'black mold' in public discourse?

Accepted Answer

Stachybotrys

Answer

Stachybotrys chartarum is the species commonly called 'black mold' and thrives on cellulose-rich, water-damaged materials like drywall.

Question 2

What microscopic structure do molds use to reproduce and disperse through the air?

Accepted Answer

Spores

Answer

Mold reproduces via spores, which are microscopic particles that become airborne and germinate when they land on suitable moist surfaces.

Question 3

Cladosporium is primarily characterized by what color in culture?

Accepted Answer

Olive-green to brown or black

Answer

Cladosporium typically appears olive-green to brown or black and is one of the most common outdoor and indoor mold genera.

Question 4

Which characteristic best distinguishes Aspergillus from Penicillium under a microscope?

Accepted Answer

Aspergillus has a globose vesicle (conidial head), Penicillium has a brush-like conidiophore

Answer

Aspergillus is identified by its vesicle (swollen tip) on the conidiophore, while Penicillium has a brush-like branching structure called a penicillus.

Question 5

Alternaria is commonly found in which indoor environment?

Accepted Answer

Shower tiles and window frames

Answer

Alternaria frequently colonizes bathroom shower tiles, window frames, and other surfaces with recurring moisture exposure.

(CMA) Certified Mold Assessor Practice Test

(CMA) Certified Mold Assessor Practice Test

CMA Mold Identification & Types 2