Yeasts are unicellular fungi.

• A. True
• B. False
• C. Not sure
• D. Both

Answer: (A)

Yeasts are unicellular fungi, meaning they exist as single cells rather than forming a multicellular filamentous network. This distinction sets them apart from molds, which grow as multicellular hyphae. Yeasts reproduce mainly by budding, where a small daughter cell forms off a parent cell and eventually separates, resulting in colonies composed of individual yeast cells. Some species can switch to a filamentous form under certain conditions (forming pseudohyphae or true hyphae), but they are still classified as fungi with yeast-like growth in the typical state. Because of these characteristics, the statement is correct.