B io Factsheet September 2000 Number 76 The Eukaryotic cell cycle and Mitosis This Factsheet covers the relevant AS syllabus content of the major examining boards. By studying this factsheet the candidate will gain a knowledge and understanding of: • the different phases of the eukaryotic cell cycle (a eukaryotic cell has membrane bound organelles) • the importances of mitosis • the process of mitosis The eukaryotic cell cycle Fig 2. Quantity of DNA in the cell during different
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(the first step in the electron transport chain) (“Succinate Dehydrogenase‚” 2012). Reference Morgan‚ Judith Giles and Carter‚ M. Eloise Brown. Investigating Biology (Laboratory Manual). 7th ed. 107- 121. 2011. Reece‚ Jane B.‚ Urry‚ Lisa A.‚ Cain‚ Michael L.‚ Wasserman‚ Steven A.‚ Minorsky‚ Peter V.‚ and Jackson‚ Robert B. Campbell Biology. 9th ed. 152-171. 2011. Malonate inhibition of oxidation in the Krebs Tricarboxylic acid cycle. (Received for publication‚ October 26‚ 1948)‚ from http://www
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Close reading and response to literature Number The Stars -Lois Lowry 1. What are the major themes of this book ? Difficulty of growing up The author Lois Lowry uses the context of World War II as a way of making the difficulties stand out more clearly. The novel focuses on Annemarie Johansen’s personal experiences with growing up‚ but her experiences are common to most young people. Growing up is presented as a struggle for identity. Does Annemarie belong to the world of adults or
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Quantum Numbers Quantum Numbers The Bohr model was a one-dimensional model that used one quantum number to describe the distribution of electrons in the atom. The only information that was important was the size of the orbit‚ which was described by the n quantum number. Schrödinger’s model allowed the electron to occupy three-dimensional space. It therefore required three coordinates‚ or three quantum numbers‚ to describe the orbitals in which electrons can be found. The three coordinates that
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investigated. Which bar chart shows the results of investigating hydrolytic enzyme activity? 5 Radioactively-labelled amino acids are introduced into a cell. In which cell structure will the radioactivity first become concentrated? 6 What is the function of nucleoli? A the formation and breakdown of the nuclear envelope B the formation of centromeres C the formation of ribosomes D the organisation of the spindle during nuclear division
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DEFINITIONS * Biology is a natural science concerned with the study of life and living organisms‚ including their structure‚ function‚ growth‚ evolution‚ distribution‚ and taxonomy. * The cell is the basic structural and functional unit of all known living organisms. It is the smallest unit of life that is classified as a living thing (except virus‚ which consists only from DNA/RNA covered by protein and lipids)‚ and is often called the building block of life. Organisms can be classified
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Up until 1750‚ Britain practiced salutary neglect toward their colonies in North America. Although a sense of mercantilism existed‚ Britain’s lack of supervision gave the colonies a chance to govern independently and to develop separately from Britain. Britain’s salutary neglect toward the colonies influenced the development of legislative assemblies‚ commerce‚ and religion by forcing the colonies to become more independent‚ therefore further developing characteristics of and desires to be a sovereign
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Number A-7713 “Never shall I forget those flames which consumed my faith forever. […] Never shall I forget those moments which murdered my God and my soul and turned my dreams to dust. Never shall I forget these things‚ even if I am condemned to live as long as God Himself. Never” (Wiesel). This quote‚ taken from the book Night by Elie Wiesel‚ testifies to the concept of transformation for Eliezer‚ a Jewish teenager who was forced to experience the horrors of the Holocaust. Eliezer‚ when living
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`Biology B1 Revision Classification • Organisms were based into groups based on their characteristics (classification). • Kingdom‚ Phylum‚ Class‚ Order‚ Family‚ Genus‚ Species Kingdom Main Characteristics Animalia Multicellular; heterotrophic feeders so no chlorophyll‚ no cell walls; complex cell structure with nucleus Plantae Multicellular; autotrophic feeders using chlorophyll; cell walls made of cellulose; complex cell structure with nucleus Fungi Multicellular; cell walls not made
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Graham’s number‚ named after Ronald Graham‚ is a large number that is an upper bound on the solution to a certain problem in Ramsey theory. The number gained a degree of popular attention when Martin Gardner described it in the "Mathematical Games" section of Scientific American in November 1977‚ writing that‚ "In an unpublished proof‚ Graham has recently established ... a bound so vast that it holds the record for the largest number ever used in a serious mathematical proof." The 1980 Guinness
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