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By: Bronwen Zac & Holly

Fungi. By: Bronwen Zac & Holly. Corporal Structure. Fungi contain cells that are eukaryotic, the cell wall is present which is composed of chitin; A polymer of nitrogen containing sugar.

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By: Bronwen Zac & Holly

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  1. Fungi By: Bronwen Zac & Holly

  2. Corporal Structure • Fungicontain cells that are eukaryotic, the cell wall is present which is composed of chitin; A polymer of nitrogen containing sugar. • Some fungi are symmetrical and others are not. Mushrooms have a radial symmetry and other fungi have a bilateral symmetry which creates two mirror images. Ex: yeast

  3. STRUCTURE

  4. Physiology • Circulation • Gas exchange • Digestion • Nervous system

  5. Circulation • Fungi do not have a heart, but do have a circulatory system which is made up of masses of connecting hyphae. Hyphae is a long, branching filamentous structure of a fungus. They are the main mode of vegetative growth, yeast are unicellular fungi that do not grow as hyphae.

  6. Gas exchange • They do both aerobic and anaerobic respiration, but do not contain a respiratory system. • They do go through cellular respiration. It is the process of oxidizing food molecules, like glucose to carbon dioxyde and water. EX= C6 H12 O6+6O2+6H2O12H2D+6CO2

  7. Digestion • They receive there energy by decomposing dead matter found in soil. • To digest their food, it transforms complex organic substances into raw materials that other fungi/plants use for growth and development. • They have complete extracellular digestion meaning that they live in their food and digest the food that surrounds their bodies. • Fungi are important decomposers because their mycelia breaks down and absorbs nutrients from their organic substrate.

  8. Nervous system • Fungi do not have a nervous system, but to replace it they have an endocrine. • Endocrine is the system that enables fungi to recognize and react to outside stimuli in the form of available food sources.

  9. Life cycle • Fungi reproduce sexually and asexually. • Sexually- always produce spores as reproductive cells. Spores are usually dispersed by air currents. (they germinate) • Asexually- They reproduce through fragmentation, by breaking apart portions of the mycelium. • The mycelium is the vegetative part of fungus.

  10. Taxonomy • Classification of Fungi Kingdom- Fungi Phylum- mycota Class- mycetes Order- ales Family- aceae Genus- -------- Species- -------

  11. Taxonomy • There are many different examples of fungi, it is any unicellular or multicellular organism: • Mushrooms • Yeast • Moulds • Morels • Truffles • Shelf fungi • Chytrids • Water moulds 2 3 1 5 6 4 7 8

  12. Principal Characteristics • Most fungi are multi cellular • All fungi are heterotrophs, they obtain their food through absorption. • Not produced by seeds • They reproduce sexually and asexually. • Most fungi are terrestrial. • Can live in aquatic/moist habitats. • They don’t photosynthesize. • Lichen are two organisms close together that help its partner out. The non fungi organism gives energy from photosynthesis and it also provides it vitamines. In return the fungi protects the organism by shading it from the strong sunlight since it will dry out very quickly.

  13. THE END

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