BIO102 Protist and Fungal Evolution and Diversity (Chs. 21 & 22)

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What is a basidiospore?

Back

A sexual spore produced by fungi, specifically in the Basidiomycota group, typically formed on a structure called a basidium.

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What are dikaryotic cells in fungi?

Back

Cells that contain paired haploid nuclei that fail to fuse for an extended period of time, characteristic of certain fungal life cycles.

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What are sporangiospores?

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Spores produced asexually by fungi, typically within a sporangium, and are involved in the asexual reproduction of fungi.

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Why are fossil remains of foraminiferans important to scientists?

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They provide evidence of the antiquity of protists, can indicate the presence of oil, and can be used as index fossils to date sedimentary rock.

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Are fungi considered the first kind of eukaryotic cells to evolve?

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False. Fungi are not considered the first eukaryotic cells; other groups like protists are believed to have evolved first.

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What is the role of conidia in fungi?

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Conidia are asexual spores produced by certain fungi, allowing for rapid reproduction and dispersal.

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Define mycelium in fungi.

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The vegetative part of a fungus, consisting of a mass of branching, thread-like hyphae.

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What is the significance of hyphae in fungal structure?

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Hyphae are the filamentous structures that make up the mycelium, playing a crucial role in nutrient absorption and growth.

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What is the difference between haploid and diploid cells in fungi?

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Haploid cells contain one set of chromosomes, while diploid cells contain two sets. Fungi often have a haploid phase in their life cycle.

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What are lichens?

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Symbiotic associations between fungi and algae or cyanobacteria, where the fungus provides structure and protection, and the photosynthetic partner provides nutrients.