Chloroplasts and Photosynthesis All animals and most microorganisms rely on the continual uptake of large amounts of organic compounds from their environment. These compounds are used to provide both the carbon skeletons for biosynthesis and the metabolic energy that drives cellular processes. It is believed that the first organisms on the primitive Earth had access to an abundance of the organic compounds produced by geochemical processes‚ but that most of these original compounds were used up billions
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Blueprint Of Life 1. Evidence of evolution suggests that the mechanisms of inheritance‚ accompanied by selection‚ allow change over many generations * Outline the impact on the evolution of plants and animals of: - Changes in physical conditions in the environment - Changes in chemical conditions in the environment - Competition for resources Physical Conditions | Chemical Conditions | Competition for resources | Change in physical conditions such as:- Temperature- Wind conditions-
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Chapter 8: Cellular Reproduction – Cells from Cells 1. What are the three important roles of cell division? 2. Compare and contrast sexual and asexual reproduction. 3. Distinguish between the terms: DNA‚ gene‚ chromosome‚ replicated chromosome‚ sister chromatid and centromere. 4. What are the two phases of the cell cycle? What are the three stages of interphase? 5. Mitosis is the division of the ______‚ while cytokinesis is the division of the ______. 6. Describe the appearance
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INTRODUCTION Bioinformatics is a branch of biological science which deals with the study of methods for storing‚ retrieving and analyzing biological data‚ such as nucleic acid (DNA/RNA) and protein sequence‚ structure‚ function‚ pathways and genetic interactions. Simply we can say that bioinformatics is the combination of computer systems and biological systems (figure: 1). It generates new knowledge that is useful in such fields as drug design and development of new software tools to create
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General Features of Oxidative Additions Oxidative addition reactions usually involve a coordinatively unsaturated 16-electron metal complex or five-coordinate 18-electron species‚ and take the general from: [pic] If the A and B ligands in the product are considered to be formally –1‚ then the metal center has increased its oxidation state by +2‚ and this is the origin of the name oxidative addition. Oxidative reaction can occur when a metal complex
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sites’ of the target are made and undergo clinical test. • Molecular modelling also used to design many other compounds like pesticides and polymers with specific characteristics. A Brief History of HIV-AIDS • Early on 1988 X-Ray Crystallography were used to determine the shape of HIV protease. • Discovery of a molecule that block its active site is a one step to the cure. • By imitating the molecule (substrate) that the enzyme worked on‚ inhibitors were made using molecular
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person that excited Watson on DNA research. Wilkins had an assistant‚ Rosalind Franklin (also known as Rosy). Initially‚ Wilkins thought that Rosy was supposed to be his assistant in researching the structure of DNA because of her expertise in crystallography; however‚ Rosy did not want to be thought of as anybody’s assistant and let her feelings be known to others. Throughout the book there is a drama between Wilkins and Rosy‚ a drama for the struggle of power between the two. Watson’s "adventure"
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wavelength) as "hard" X-rays‚ due to their penetrating abilities.[3] Hard X-rays can penetrate some solids and liquids‚ and all uncompressed gases‚ and their most common use is to image of the inside of objects in diagnostic radiography and crystallography. As a result‚ the term X-ray is metonymically used to refer to a radiographic image produced using this method‚ in addition to the method itself. By contrast‚ soft X-rays hardly penetrate matter at all; the attenuation length of 600 eV (~2 nm)
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TITLE Vapour Liquid Equilibrium OBJECTIVE To find the Vapour-Liquid Equilibrium (VLE) relationship for binary mixture and to plot the equilibrium curve. INTRODUCTION The term equilibrium is referred to as when a system is in a static condition and there is absolutely no changes that occur as time goes by. Vapour-liquid equilibrium is a condition where a liquid and its vapor are in equilibrium with each other‚ a condition or state where the rate of evaporation is equal to the rate of condensation
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Virology –Midterm vA‚ 22 April 2013: 1. Which of the following genomic nucleic acids are only found in viruses? a. dsDNA b. dsRNA c. ssDNA d. ssRNA e. B‚ C and D 2. About what percent of the human genome is indisputably viral? a. 1 b. 2 c. 5 d. 10 e. 50 3. Viruses were first discovered (and named as such) because they : a. could not be grown b. were very small c. were alive d. ate bacteria e. C and D 4. Phage therapy is to : a. Use a virus to kill a virus b. Use viruses to kill cancer cells c. Use
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