In these types of hot springs‚ the orange‚ yellow and brown colors are due to pigmented photosynthetic bacteria which make up the microbial mats. The mats are literally teeming with microbes. Other non-photosynthetic bacteria‚ as well as various archaea and algae are also residents of the hot spring community. Figure 3. Cross section of a microbial mat showing the different layers of pigmented bacteria. Measurement is in centimeters. Although most microorganisms are unicellular and do
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bacteria‚ or evolutionary stress. A bacteria with many resistance genes may be referred to a superbug‚ or super bacterium. Archaea: Single celled organisms‚ who are a part of 1/3 domains of life. Contains no nucleus or organelles. Can survive in extreme conditions First forms of life to appear on Earth. Example: Extremophiles. Applies to theory which Archaea appear from outside of Earth‚ due to their extreme environmental resistance capabilities. ATP sythetase (synthase): Couples
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Study Guide 1 Geol 105 Spring 2012 Terms and People to know Amino acids –compound of life- proteins. Archaea – best candidate for earliest life. Live in extreme environments. BIF –Banded Iron Formation Mistaken Point- New foundland. Marine environments. Branching structure. fractal body plan Uniformitarianism- The theory that all geologic phenomena may be explained as the result of existing forces having operated uniformly from the origin of the earth to the present time.the laws of nature
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Term | Definition | Systematic Biology / Systematics | * Study of the biodiversity * Quatitative science that uses the characteristics of living and fossil organisms(traits) to infer relationships between organisms over time | Taxonomy | * Branch of systematic biology * Process of identifying‚ naming and organising biodiversity into related categories | Taxon | General name for a group containing an organisms or groups of organisms that exhibit a set of shared traits | Classification
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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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Module 01 Homework Assignment • Use the information presented in the module folder along with your readings from the textbook to answer the following questions. • Please try to write at least 2-3 COMPLETE sentences for your responses 1. Define and briefly describe the different classes of microorganisms (including the terms Eukaryotes and Prokaryotes): 1. Eukaryotes: Eukaryotes are living organisms whose cells are larger and more complex than prokaryotic cells and contain complex
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whose single cells have neither a membrane-enclosed nucleus nor other membrane-enclosed organelles like mitochondria and chloroplasts. Another group of microbes‚ the archaea‚ meet these criteria but are very different from the bacteria in other ways. In fact‚ there is considerable evidence that you are more closely related to the archaea than they are to the bacteria! Bacteria are living things that are neither plants nor animals‚ but belong to a group all by themselves. They are very small--individually
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complicated and has less peptidoglycan Gram positive- Dyes purple its less complicated and has more peptidoglycan Compare and contrast Domain Bacteria and Domain Archaea Bacteria 1. Cell wall contains peptidoglycan. 2. Heterotroph. 3. One kind of RNA. 4. Cannot live in environments with temperatures above 100 degrees Celcius. Archaea 1.Cell wall lacks peptidoglycan 2. Autotroph 3. Several kinds of RNA 4. Can live in extreme environmental conditions Know the shapes and structures of bacteria
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Beginning of Life on Earth Question 1 a) What is one of the suggestions for the beginning of life on Earth? What is the problem with this idea? The article states that suggestions have been made that germs of life may have made their way to Earth from outer space. This may have occurred due to comet dust resting on the Earth’s surface. Another theory proposed by Francis Crick states a spaceship sent out by a distant civilisation may have contained the first signs of life. The issue with these ideas
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· Taxonomy ○ Science of classification ○ Provides an orderly basis for the naming of organisms and for placing organisms into a category (taxon) ○ Makes use of and makes sense of the fundamental concepts of unity and diversity among living things ○ Basic principle is that members of higher-levels groups share fewer characteristics than those in lower-level groups * Escherichia coli - rod shape and have a Gram-negative cell wall * Even members of the same species display variations
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