Which statement about fungi is true?

• A. Fungi are always pathogenic.
• B. Fungi are single-celled or multi-celled organisms that can be pathogenic.
• C. Fungi are bacteria.
• D. Fungi cannot cause infections.

Answer: (B)

Fungi are a diverse group of organisms that can exist as single cells (yeasts) or as multicellular forms (molds). Some fungi can cause infections in humans, especially when the immune system is weakened or when normal skin or mucosal barriers are disrupted. This makes the statement true: fungi can be single- or multicellular and can be pathogenic.

It's important to know that not all fungi cause disease, and they are not bacteria. Fungi are eukaryotic organisms with cell walls made of chitin and they reproduce by spores, which helps explain how fungal infections spread. In practice, you’ll see fungal infections like athlete’s foot, ringworm, or candidiasis, which underscores why understanding their potential to be pathogenic is important for prevention and care.