Origins of the Name The word‚ Aluminium originates from the ancient Latin word for alum‚ alumen‚ which is potassium aluminum sulfate‚ meaning “bitter salt”. We pronounce the element of aluminium’s name as follows‚ al-yuh-min-ee-uhm‚ which conforms to the IUPAC pronunciation of the word‚ with the regular ‘ium’ ending of majority of the elements of the periodic table. The History Aluminium was first discovered in 1825‚ by early discoverer‚ Hans Christian Oersted in Denmark. Before this time‚ alum
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J. of Advanced Engineering and Technology Vol. 2‚ No. 2 (2009) pp. 281-283 Synthesis of 2-Acetylcyclohexanone Using Pyrrolidine-enamine Eun-SunYoo Department of Oriental Medicine Industry‚ Honam University‚ Korea (Received : May. 20‚ 2009‚ Revised : Jun. 02‚ 2009‚ Accepted : Jun. 12‚ 2009) Abstract : 2-Acetylcyclohexanone was synthesized by acylation reaction of acidic anhydride using enamine as organiocatalyst instead of a strong base‚ NaOH‚ resulting in milder reaction conditions. The
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Part II: For the following questions‚ provide your response in short-answer format (2–3 detailed sentences each). Use this Phase’s activities and resources to assist you in answering. 7. What is pH? a. pH is a measurement of hydrogen ion concentration. It measures rather the solution is acid‚ base‚ or neutral. 8. What is a base? a. Accepts hydrogen ions from another substance that have a pH>7. It taste bitter and feel slippery. 9. What is an acid? a. Component with a positive or
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PATTERNS IN NATURE – Summary Notes 1. ORGANISMS ARE MADE OF CELLS THAT HAVE SIMILAR STRUCTURAL CHARACTERISTICS 1.1 Outline the historical development of the cell theory‚ in particular‚ the contributions of Robert Hooke and Robert Brown The Cell Theory states that: All living things are made of cells (Theodor Schwann & Matthias Schleiden) Cells are the basic structural and functional unit of organisms (Theodor Schwann) All cells come from pre-existing cells (Rudolf Virchow) The historical
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Name________________ Block 4 ______ Pushing the Limits – Strength! For each section: List ONE question that could be answered by the film about each of the different sections and state the answer. Bones Q - How Many bones is your skeleton made up of ? _______________________________________________________________________ A - The Skeleton is made up of 206 bones _______________________________________________________________________ Muscles – Superhuman strength Q- How does
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Animal Diversity The number of animal varieties familiar to us is vast as the animal world is diverse. Each distinct variety or type of animals is recognized by scientist as a species. Animals of most species are free-living forms but of others are parasitic in bodies of other animals or even plants. According to their habitats animals are divided into the following types Aquatic animals :- They live in water . Animals living in sea water are called marine & those live in river‚ponds‚streams
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#Of people with trait Free earlobes 20 100% Attached earlobes 0 0% Hair on knuckles 5 25% No hair on knuckles 15 75% Widow’s peak 5 25% Straight hair line 15 75% Curly hair 10 50% Straight
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TUTORIAL 1 BASIC MOLECULES OF CELLS I Student’s Guide: At university level‚ the tutor facilitates student learning without spoon-feeding. Therefore‚ you are expected to: • Read your textbook‚ attempt the questions before the tutorial • You may enter the class and sign your attendance after showing your tutor that all tutorial questions have been completed; even if you don’t know how to do‚ write something - you’re not advised to leave answers blank in the finals. • Write answers
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Structural Isomers • molecules with the same molecular formula but with different arrangements of atoms • differences in the shape of isomers lead to differences in their physical & chemical properties • For example‚ galactose‚ glucose and fructose have the same molecular formula (C₆H₁₂O₆) but different structures (figure 6 page 30) • glucose itself has 3 different structural isomers in dry state‚ glucose has a linear structure‚ but when dissolved in water‚ the molecules fold on itself
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1. Outline the process of DNA profiling (genetic fingerprinting)‚ including ways in which it can be used. 6 marks • sample of DNA obtained / leucocytes / from mouthwash / hair / other named source • satellite DNA / repetitive sequences used for profiling • amplification of DNA by polymerase chain reaction / PCR • cutting DNA into fragments using restriction enzymes • separation of fragments of DNA (by electrophoresis) • separation according to the length of the fragments • pattern of
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