Bio Review: Unit 1 Diversity of Living Things Diversity- all the different kinds of life on Earth Species Diversity- variety of species‚ abundance of the species in a given area Genetic Diversity- variation of genes within a species Ecosystem Diversity- diverse range of habitats‚ various organisms within habitats & relationships between them Prokaryotes Eukaryote Appearance Size - Always smaller - 1000x larger DNA structure - Plasmid (one strand circular DNA) - Dna in nucleoid
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Lu Feng BIO 182 Hillary Emick Plant Adaptation Pinus halepensis‚ commonly known as the Aleppo Pine‚ is a pine native to the Mediterranean region. In dessert‚ water is limited for plants to grow up. Pinus halepensis has plans for water management. The leaves are very slender‚ 6–12 cm (2.4–4.7 in) long‚ distinctly yellowish green and produced in pairs (rarely a few in threes).1 The needle-shaped leaves exposed area minimizes the amount of moisture lost to breezes and the sunlight. The needle-shaped
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Making the Grade Kurt Wiesenfeld Kurt Wiesenfeld is a physicist who teaches at Georgia Tech in Atlanta. He wrote this essay for the “My Turn” column of the June 17‚ 1996‚ issue of Newsweek. It was a rookie error. After 10 years I should have known better‚ but I went to my office the day after final grades were posted. There was a tentative knock on the door. “Professor Wiesenfeld? I took your Physics 2121 class? I flunked it? I wonder if there’s anything
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Elizabeth Au (1) Serena Chan (3) Sharon Chan (4) Christy Chan (5) BIOLOGY LAB REPORT Investigation of the effect of metal ions on enzyme activity Objective To study the effect of two heavy metal ions‚ lead (II) ions and silver ions on the enzyme activity of invertase. Introduction Hypothesis: The rate of enzyme reaction of invertase decreases and the reaction eventually stops as the heavy metal ions inhibit the enzyme reactions. Biological principle: Heavy metal ions are non-competitive inhibitors
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to print a document or an organ. Is this a typing error or is it future brilliance?! “Fancy a new kidney? I’ll just print one off for you.” A brief glance at how future medicine for the next generation could be. With the invention of the ingenious Bio printer‚ this could be done! It is certainly creating a buzz in science and medical institutions globally. 3D printing is fast becoming a massive part of manufacturing and fabrication all over the world. Scientists and technological experts are able
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by my family to study hard. I did not know what they truly meant until I was in grade twelve. I realized that studying hard will help to have good grades. Having good grades will lead me to attending a university. I was very stressed in my last year of high school because I wanted to prove to my family that I am smarter than what they believed. I did not receive honor roll when I was in grade nine‚ ten or eleven. Grade twelve was the year where I finally knew how to study. Funny‚ right? Throughout
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These may be over time‚ e.g. winter fur to summer fur‚ or quickly‚ e.g. changing size of pupils. Internal environments change too- the build up of carbon dioxide as a result of respiration changes the pH of the tissue fluid‚ and therefore inhibits enzyme activity. Multicellular organisms need to coordinate different organs‚ so this requires a good communication system which will: • Cover the whole body • Enable cells to communicate with each other • Enable specific communication • Enable rapid
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Biological Molecules: Carbohydrates‚ Lipids‚ Proteins By the end of this lab‚ the student should be able to: Identify the functional groups for each of the biomolecules that react in the following biochemical tests: Benedict’s test‚ Iodine test‚ Brown Bag test‚ Sudan III/IV test‚ and the Biuret’s Test. Describe the mechanism of reaction for: Benedict’s test‚ Iodine test‚ Sudan III/IV test‚ and the Biuret’s Test. Interpret the results when presented with data for each of the biochemical
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was designed to investigate the effects of temperature on reactions between the enzyme catalase found in animal tissue with the substrate H2O2. The hypothesis stated that an increase in the temperature of the substrate would create a subsequent increase in the rate of reaction between the enzyme and the substrate. This hypothesis was tested by immersing 1cm cubes of animal tissue (sheep liver) which contained the enzyme catalase into the substrate (H2O2 ) mixed with detergent which foamed showing a
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Define immunocompetence and self-tolerance‚ and describe their development in B and T lymphocytes. 10. Name several antigen-presenting cells and describe their roles in adaptive defenses. Humoral Immune Response 11. Define humoral immunity. 12. Describe the process of clonal selection of a B cell. 13. Recount the roles of plasma cells and memory cells in humoral immunity. 14. Compare and contrast active and passive humoral immunity. 15. Describe the structure of an antibody monomer
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