Chloroplasts - absorb light energy to make food in plant cells. Permanent vacuole - filled with cell sap in plant cells. Yeast Yeast is a single-celled organism. The cells have a nucleus, cytoplasm and a membrane surrounded by a cell wall. Bacteria Bacterium is a single-celled organism. A bacterial cell consists of cytoplasm and a membrane surrounded by a cell wall. The genes are not in a distinct nucleus. Page 3 AQA GCSE Biology – Unit 2 summary notes Cells may be specialised
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Milky Way Galaxy, the Sol System, 4.2 billion years ago, rock and ice particles swirling around a very young sun collide and merge, producing large planetoids. One of them, an infant planet we have come to call home, is born. This planet will later be named Earth. At this point the baby Earth is nothing more than a scorching inferno of magma and vaporized rock, spitting up nothing more than magma volcanoes. This infant planet is very different from the one we know today. Its atmosphere is comprised
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The Six Kingdoms | When Linnaeus developed his system of classification, there were only two kingdoms, Plants and Animals. But the use of the microscope led to the discovery of new organisms and the identification of differences in cells. A two-kingdom system was no longer useful. Â Today the system of classification includes six kingdoms. | Â Â The Six Kingdoms:Plants, Animals, Protists, Fungi, Archaebacteria, Eubacteria. | Â | How are organism placed into their kingdoms? ï‚·Â Â Â Â Â Â
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about 15% of the population Bacteria (i/bækˈtɪəriə/; singular: bacterium) constitute a large domain of prokaryotic microorganisms. Typically a fewmicrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most habitats on the planet. Bacteria inhabit soil, water, acidic hot springs,radioactive waste,[2] and the deep portions of Earth's crust. Bacteria also live in plants and animals
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Prize in 1908 for work on immunity Linked regular consumption of lactic acid bacteria in fermented dairy products to health and longevity in Bulgarian peasants. • Sunday, April 20, 14 Common Probiotics Used • Bacteria • Lactobacillus • Bifidobacterium group • Yeast • Saccharomyces boulardii Sunday, April 20, 14 Some Health Benefits • Normalize the intestinal tract. • Suppress growth of pathogenic bacteria. • Increase resistance against infections. • Increase overall digestive abilities
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Virtual Systematics Lab: Introduction to Systematics Worksheet Learning Goal: To learn how biologists classify species based on their evolutionary relationships. Prerequisite Knowledge: Before beginning this lab, you should be familiar with these concepts: • why biologists today use the three-domain system of classification • how evolutionary trees depict biologists’ understandings about the evolutionary relationships among groups of organisms Introduction: Almost every place on Earth
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Observing Bacteria and Blood Student Jamie Chrostowski Lab 1 – Due 2/15/15 Microbiology DL1, Professor Newton Abstract: The different objectives of a microscope allow for a range of observations. At the highest objectives, the resolution can easily be lost which is why the oil immersion lens is used to minimize refraction. While observing specimens, both dead and active, their shapes and arrangements can be observed. This allowed for hands on learning, observation, and identification of the bacterial
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DNA, RNA, proteins – Taxon s. (taxa pl.) – Binomial nomenclature Taxonomic Classification • • • • • • • • Domain Kingdom Phylum Class Order Family Genus Species • Taxon • Binomial nomenclature • Dynamic Domains (3) • Bacteria, Archae, Eukarya
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Today, anyone can go to the grocery store and purchase fruits and vegetables that have been genetically modified. As a matter of fact, most of us do it unknowingly all the time. But, what exactly are genetically modified foods and what sets it apart from traditional breeding? The biotech industry and our departments of agriculture claim that genetic engineering is a natural extension of traditional breeding. However, traditional agriculture methods, such as cross-pollination or selective breeding,
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DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules
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