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18 Cards in this Set
- Front
- Back
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Describe Fungi
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Simple eukaryotes
heterotrophic sign. role in decomposition of organic matter |
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How does fungi obtain nutrition?
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All fungi are heterotrophic. Food is obtained through the process of absorption, fungi secrete enzymes that digest food outside their cell, and they then absorb the products of digestion.
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What is chitin?
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A fungi's cell wall contains chitin a polysaccharide that also contains amino acids, most like the cellulose in the cell wall of plant cells.
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What is hyphae?
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A tangled thread-like structure formed my multicellular fungi. Used to increase their ratio of surface are to cell volume, which optimizes contact for digestion and absorption of nutrients.
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What does coenocyte mean?
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Each hypha is basically a continuous mass of cytoplasm with nuclei scattered throughout it.
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The entire mass of hyphae for a single fungus compose a large, net-like structure known as a _________.
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mycelium
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What is haustoria?
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Specialized structures that penetrate the host plant's tissues without puncturing any of its cell membranes.
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Name the 4 types of basic fungi?
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Zygosporangium-Forming Fungi
Sac Fungi Club Fungi Imperfect Fungi |
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Give the characteristics of Zygosporangium-Forming Fungi also called Conjugation fungi
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live in soil or decomposing organic matter
Produce thick-walled sporangia |
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What is Rhizopus stolonifer?
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a mold commonly found on bread, a ZFF member.
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What are rhizoids?
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Thin, branched hairs that anchor the mycelium by penetrating the substance on which the fungus resides.
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Give the characteristics of sac fungi
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form a reproductive sac called ascus where the joining of the hyphae take place.
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Name some common sac fungi
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Yeasts
Mildews Ergot Penicillium |
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Give the characteristics of Club Fungi
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Extend vertically above the soil, forming a stem that is topped by a fleshy cap. Examples are toadstools, puffballs, mushrooms.
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Describe imperfect fungi
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they exhibit only asexual reproduction and do not have a sexual cycle.
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Describe a symbiotic relationship
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Fungi are sometimes involved in interactions with other organisms in which both species benefit from the involvement.
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What is Lichens
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are a composite of fungus and algae that have a symbiotic relationship
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What is mycorrhizae?
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Means fungus root. A symbiotic relationship between roots of plants and fungi.
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