chapter 26 review

chapter 26 review - Lecture 12 Chapter 26 Fungi A. Fungi...

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Lecture 12 – Chapter 26 – Fungi A. Fungi eukaryotic, mainly multicellular cells contain membraneenclosed nuclei, mitochondria, and other membrane organelles can thrive in harsh environments lack swimming reproductive cells 1. Absorb Food from the Environment cannot produce their own organic materials from a simple carbon source heterotrophs infiltrate a food source and secrete digestive enzymes onto it 2. Cell Wall Structure cell walls contain complex carbohydrates, including chitin Fungal cells are enclosed by cell walls during at least some stage in their life cycle 3. Filamentous Body Plan Simplest fungi are yeast, which are unicellular, nonfilamentous, with a round or oval shape Most fungi are molds fast growing mycelium of any asexually reproducing fungus consist of long, branched, threadlike filaments called hyphae Hyphae are a fungal mode of nutrition absorbs nutrients through its large surface area develops from a unicellular spore; they form a tangled mass of tissue like aggregation known as mycelium separated by cross walls called septa are perforated by a pore that may be large enough to permit organelles to float from cell to cell
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coenocytic fungi lack septa 4. Reproduction by Spores Fungi produce nonmotile spores asexually or sexually produced on aerial hyphae or in fruting structures Structures in which the spores are produces are called sporangia The aerial hyphae of some fungi produce spores in large, complex reproductive structures referred to as fruiting bodies. 5. Asexual Reproduction
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chapter 26 review - Lecture 12 Chapter 26 Fungi A. Fungi...

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