Hyphae are :

Hyphae are the basic structural units of most fungi, characterized as long, thin, thread-like filaments [1]. These tubular structures branch and intertwine to form a complex web-like network known as a mycelium. While yeast is a type of fungus, it is typically unicellular and reproduces by budding, often lacking true hyphae [4]. In multicellular fungi like bread mould (Rhizopus), hyphae serve as the vegetative body rather than the reproductive cells themselves; instead, specialized structures like sporangia or spores are responsible for reproduction [3]. The primary function of hyphae is to maximize surface area for nutrient absorption from the environment or host. They are not primarily responsible for preventing water loss in wet conditions, but rather for growth, nutrient transport, and ecological interactions like decomposition and symbiosis.

Sources

1. [1] Science , class X (NCERT 2025 ed.) > Chapter 7: How do Organisms Reproduce? > 7.2.6 Spore Formation > p. 118
2. [3] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 2: The Invisible Living World: Beyond Our Naked Eye > 2.5 Why Is Cell Considered to Be a Basic Unit of Life? > p. 23
3. [4] https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/hypha