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Questions and Answers
Which type of hyphae do Phycomycetes have?
Which type of hyphae do Phycomycetes have?
- Monocentric hyphae
- Coenocytic hyphae
- Septate hyphae
- Non-septate hyphae (correct)
Which group of fungi form sexual spores called ascospores in a sac?
Which group of fungi form sexual spores called ascospores in a sac?
- Basidiomycetes
- Fungi imperfecti
- Ascomycetes (correct)
- Phycomycetes
Which of the following statements accurately describes molds?
Which of the following statements accurately describes molds?
- They are multicellular and have threadlike tubular structures called hyphae (correct)
- They are unicellular and produce round pasty colonies on agar
- They form endogenous asexual spores within sporangia
- They reproduce by budding similar to yeast
Which of the following fungi are known for having septate hyphae?
Which of the following fungi are known for having septate hyphae?
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What type of spores do Basidiomycetes reproduce by?
What type of spores do Basidiomycetes reproduce by?
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What is a key characteristic of yeasts?
What is a key characteristic of yeasts?
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Study Notes
Systemic Classification of Fungi
- Phycomycetes: characterized by non-septate hyphae and production of endogenous asexual spores (sporangiospores) within sporangia, with oospore and zygospore as sexual spores.
- Ascomycetes: distinguished by formation of sexual spores (ascospores) in a sac called ascus, includes yeasts and filamentous fungi, and has septate hyphae.
- Basidiomycetes: reproduces through sexual reproduction, producing basidiospores at the tip of basidium, and has septate hyphae.
- Fungi imperfecti: a group of fungi where sexual phases have not been identified, including Sporothrix schenkii.
Structure and Reproduction of Fungi
- Fungi can be either unicellular or multicellular organisms.
- Yeasts: reproduce by a progenitor cell pinching off a portion of itself to produce a progeny cell, which may elongate to form sausage-like pseudohyphae, and produces round, pasty, or mucoid colonies on agar.
- Molds: multicellular organisms composed of threadlike tubular structures called hyphae, which elongate at their tips through apical extension.
- Hyphae: can be either coenocytic (hollow and multinucleate) or septate (divided by partitions or cross-walls).
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