Fungi - F ungi-Chapter 31 Concept 31.1: Fungi are...

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Fungi-Chapter 31 Concept 31.1: Fungi are heterotrophs that feed by absorption Fungal Nutrition and Lifestyles Fungi are heterotrophs, but do not ingest their food - Secrete exoenzymes into their surroundings that break down complex molecules - Absorb smaller organic molecules Fungi exhibit diverse lifestyles - Decomposers, a.k.a., saprotrophs - Parasites - Mutualistic symbionts Body Structure The morphology of multicellular fungi enhances absorption of nutrients Fungi consist of haphae that are grouped together into mycelia Most fungi have cell walls made of chitin Some fungi have haphae divided into cells by septa, with pores allowing cell- to-cell movement of materials Coenocytic fungi lack septa Specialized Hyphae Some fungi have hyphae that allow them to capture animals and penetrate the tissues of their hosts Mycorrhizae are mutualisms between fungi and plant host - Ectomycorrhizae – surrounds root cells - Endomycorrhizae – extends hyphae through root-cell wall
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Fungi - F ungi-Chapter 31 Concept 31.1: Fungi are...

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