Study Companion Unit I Biology 109 Fall 2012 Chapter 27: Bacteria and Archaea Information that you should know‚ and questions that you should be able to address. 1. Define the following terms: positive phototaxis‚ negative phototaxis‚ endospore‚ binary fission‚ phototroph‚ chemotroph‚ autotroph‚ heterotroph‚ obligate aerobe‚ facultative anaerobe‚ obligate anaerobe‚ bioremediation 2. 3. What are the two main branches of prokaryotic evolution? What are the components of a prokaryotic cell wall?
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different ways with complicated systems. Mycologists‚ mycology scientists‚ usually use a simple system with four main groups. Oomycota‚ Zygomycota‚ Ascomycota‚ and Basidiomycota are the main phyla which fungi are classified into. There is a fifth major phylum‚ Deuteromycota‚ also called Fungi Imperfecti‚ in which a few organisms are loosely grouped into because they are difficult to classify‚ many of them are related to bacteria in some ways. Spores from fungi are carried for long distances in the atmosphere
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Microorganisms are classified according to their structure. By means of flow charts‚ diagrams and tables explain the differences between Viruses‚ Bacteria‚ Cyanobacteria‚ Achaea and Fungi. Bacteria or bacterium are unicellular microorganisms. They are essentially only a few micrometres long and form of various shapes including the spheres‚ rods and spirals. A BACTERIAL CELL Illustration courtesy of Wikipedia. A Virus (from the Latin noun virus‚ meaning toxic or poison) is a sub-microscopic
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Clostridium Difficile‚ C. difficile or more commonly called C. diff. belongs to the “domain bacteria which makes it a prokaryotic‚ its Phylum is Firmicutes‚ its class is Clostridia‚ its order is clostridiales‚ its family is Peptostreptococcaceae” (Brymer). “Clostridium difficile is a spore-forming‚ Gram-positive anaerobic bacillus that produces two exotoxins: toxin A and toxin B. It is a common cause of antibiotic-associated diarrhea (AAD). It accounts for 15-25% of all episodes of AAD.” [1] The
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Dyeing Poison Frog The Dendrobates tinctorius‚ also known as the dyeing poison frog was first discovered in 1797 by G. Cuvier. The Scientific classification of this amphibian is: Kingdom-Animalia‚ Phylum- Chordata‚ Class- Amphibia‚ Order-Anura‚ Family- Dendrobatidae‚ Genus- Dendrobates‚ Species- D. tinctorius. These are large poison frogs ranging from 40 to 50 mm and some females can reach to 60 mm. The dyeing poison frog is a bright blue frog with two broad yellow stripes on the back. The
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already identified (Bergman‚ Carol & Senn‚ 1988). The apple tree belongs to the Plantae kingdom meaning it is a plant (Bingaman‚ 1999) and the Tracheophyta subkingdom or phylum‚ indicates that over the years it “developed an interior plumping system and rigid supporting tissues that allowed them to grow much bigger” (“Phylum tracheophyta”‚ 1996). All these plants that have conducting tubes are vascular. Apple trees are in the Magnoliopsida class‚ meaning they are flowering plants (Mishra‚ 2010)
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formed when each individual stony coral organism‚ or polyp‚ secretes a skeleton of calcium carbonate. How are corals classified? Corals are classified as animals although they may resemble plants. In scientific classification‚ corals fall under the phylum cnidarian and the class Anthozoa. They are relatives of jellyfish and anemones. There are different types of corals that can be found in different habitats and locations around the world. Just as animals that live on land are endangered‚ coral reefs
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Vertebrates are animals that are members of the subphylum Vertebrata /-ɑː/ (chordates with backbones). Vertebrates include the overwhelming majority of the phylum Chordata‚ with currently about 64‚000 species Vertebrates include the jawless fish‚ bony fish‚ sharks and rays‚ amphibians‚ reptiles‚ mammals AND ‚BIRDS 20 Main Characteristics of Vertebrates Main Characteristics of Vertebrates are given below: 1) Well developed brain. 2) Brain lodged in to box or cranium. 3) Notochord‚ forms
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CLASSIFICATION Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Felidae Genus: Acinonyx Species: jubatus Cheetahs: Physical Characteristics Cheetahs are the fastest animals in the world they are able to reach speeds of 112kmph but only for short distances.The average cheetah weighs around 50 to 60kg. Also has a height of 70-90 cm and a length of 112-135cm. The cheetah is light brown and its covered with round
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1. Anatomi dan Fisiologi Sistem Pencernaan Sistem pencernaan adalah sistem organ yang menerima makanan‚ mencerna‚ dan mengeluarkan sisa makanan dari proses pencernaan tersebut. Fungsi utama sistem pencernaan ini adalah untuk mengabsorpsi makanan‚ menyediakan zat nutrien yang sudah dicerna secara kompleks menjadi molekul sederhana‚ untuk di distribusikan ke dalam sel melalui sirkulasi dengan unsur-unsur (air‚ elektrolit‚ dan zat gizi) dan menyekresi sisa makanan. Sistem pencernaan manusia diawali
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