Biology: Unit 1: Diversity Of Life Fungi Fungi: are multi-cellular heterotrophs that use external digestion‚ and often grow out of sight‚ underground → fungi have nothing in common with plants other then the fact that they are stationary‚ and grow in the ground. They are not photosynthetic‚ and they do not produce their own food. Characteristics/ Cell Structure: * Mesh like bodies‚ composed of branching networks of filaments called mycelium * Mycelium: a branched mass of hyphae
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THALLUS ORGANIZATION Unicellular Habit Motile form-with flagella Ex.Euglena Non-motile form-w/o flagella Ex.Gloeocapsa Colonial Habit Indeterminate- unlimited aggregates of cell division Determinate-aka Coenobium‚ division is at a fixed rate Filamentous Habit Simple unbranched –cells are capable of cell division‚ growth‚and reproduction Branched-cell division and growth are restricted to the end cells (Cladophora). Growth due to cell division of meristem is called Trichothallic
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Fungi Web quest Amanitas Amanita (various species) Family: Amanitaceae (amanitas) in the phylum Basidiomycota (club fungi) Description: There are about 600 species in the genus Amanita worldwide. Each amanita starts as an egg-shaped button that can resemble a small puffball. These breaks open as the mushroom grows. Fully developed amanitas are gilled mushrooms with parasol-shaped
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Laboratory Exercise #5 Identification of Fungi Fungi‚ like bacteria‚ may be useful in industry but also problematic. Many produce important products including foods‚ chemicals‚ enzymes and pharmaceuticals such as antibiotics and hormones. Molds‚ however‚ in particular‚ are also common contaminants in industry. It is important to be able to recognize and identify them‚ therefore‚ in the laboratory. In today’s laboratory session you will examine some common molds and attempt to identify them.
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Introduction There are both virulent and non-virulent bacteria and fungi that grow on plants. It is difficult to distinguish between the two without proper inspection and diagnosis of the diseased plant to know whether the bacteria or the fungus in question is the virulent or non-virulent one. Therefore pure cultures need to be isolated to know with absolute certainty which is the causative bacteria or fungus. Potato dextrose agar is a good nutrient agar for mycelia to thrive on which is present
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Bacteria and Fungi are both very diverse groups of organisms and have numerous characteristics which set them apart from other living creatures. The domain bacteria possess traits which differentiate themselves from other organisms for example bacteria have prokaryotic cells‚ which means that their cells lack a nucleus‚ instead‚ they contain a nucleoid which contains a single circular chromosome. Additionally‚ bacteria do not have membrane-bound organelles‚ but most do have a cell wall made of peptidoglycan
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* Fungi are Eukaryotic‚ mainly multi cellular organisms includes molds and mushrooms * fungi lack chlorophyll * they are heterotrophic and cell walls contain chitin * more closely related to animals * supergroup Unikonta categorized as opisthokonts bc of single posterior flagellum * heterotrophs‚ secrete enzymes which digest food outside the body‚ the broken down food is then absorbed by hyphae * 3 types of fungi * decomposer fungi‚ absorb nutrients
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Raudah P. Mangbisa Grade VIII-Nilo VIRUS A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms‚ from animals and plants to bacteria and archaea. Characteristics: Like living organisms‚ viruses contain nucleic acids and proteins. Inside living cells‚ viruses can reproduce‚ but not by the process of mitosis like most living cells. Viruses lack some characteristics of living organisms. Outside of living cells‚ viruses are
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Meghan Veach Bio. 101 Dr. Davis April 28‚ 2014 Chapter 18 - Evolution of Plants and Fungi Plants have been around for over 500 million years‚ the plants all differ so much but they also have many similarities among themselves and also to green algae. Some scholars even think that plants paved the way for land animals by simultaneously increasing the amount of oxygen in the Earth ’s atmosphere and decreasing the amount of carbon dioxide. Evolutionist believe that plants evolved from green
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Chapter 21 Fungi Study Guide Q: How do fungi absorb their food? A: Through the mycelium‚ a thick mass of tangled hyphae that provides a large surface area for the food source to come in contact with. Q: Are fungi photosynthetic? A: No‚ fungi are heterotrophic. Q: What is a fruiting body? A: A reproductive structure growing from the mycelium in the soil beneath it. An example of a fruiting body is a mushroom. Q: What is lichen? A: Symbiotic associations between a fungus and a photosynthetic
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