Bibliography: M. Boyle‚ K. Senior. (2008)Human Biology 3rd Generation. London. A. Waugh‚ A. Grant. (2001) Anatomy and Physiology in Health and Illness. http://www.biology-online.org/dictionary/Monomer http://www.ehow.com/about_4843877_digestive-organs-within-cardiovascular-system.html http://www.purchon.com/biology/enzymes.htm
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DESIGN OF THE QUESTION PAPER CHEMISTRY CLASS - XII Time : Three Hours Max. Marks : 70 The weightage of the distribution of marks over different dimensions of the question paper shall be as follows: A. Weightage to content/subject units Unit Title Marks 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid state Solutions Electrochemistry Chemical Kinetics Surface Chemistry General principles and process of Isolation of elements p-Block Elements
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Surname Centre No. Initial(s) Paper Reference 4 3 3 5 Candidate No. 2 H Signature Paper Reference(s) 4335/2H Examiner’s use only London Examinations IGCSE Team Leader’s use only Chemistry Paper 2H Higher Tier Wednesday 17 June 2009 – Morning Time: 2 hours Materials required for examination Nil Items included with question papers Nil Question Leave Number Blank 1 2 3 4 5 6 7 8 9 Instructions to Candidates In the boxes above‚ write your centre number‚ candidate number‚ your surname
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------------------------------------------------- Glossary acids molecules that have a pH level less than 7‚ dissociate in water‚ and release hydrogen ions (H+) action potential the electrical potential determined by unequal ion distribution when a particular site on the neuron membrane is conducting an impulse; normally about +40 millivolts activation energy the amount of energy required before a chemical reaction can occur; this amount is reduced when an enzyme is present active process
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are not just critical to structural formation‚ but they also store molecules called growth factors and release them at various times to control the growth and repair of tissues and organs throughout the body. Production of abnormal fibrillin-1 monomers from the mutated gene disrupts the formation of multiple polymers of fibrillin-1 and prevents microfibril formation. This pathogenetic mechanism has been termed dominant-negative because the mutated fibrillin-1 disrupts microfibril formation though
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Background -Hemophilia A is an inherited disorder in which one of the proteins needed to form blood clots is missing or reduced. This lacking protein is known as blood clotting factor 8. Without F8‚ the blood cannot clot properly to stop bleeding and can result in excessive bleeding or disabilities. Hemophilia A -When blood is not able to clot and allow wounds to heal‚ this is a result of Hemophilia A Symptoms Include: -Prolonged bleeding from cuts -Excessive nose bleeds -Many large
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of biological molecules and their subgroups‚ because‚ it will give a visual prospective. Purpose(s): 1. To better understand each type of biological molecule discussed in Chapter 3 2. To understand what subgroups are 3. To understand monomers and polymers 4. To understand the structure of these biological molecules 5. To understand what their functions are in the body Materials: 1. Black=Carbon 2. Red=Oxygen 3. Yellow=Hydrogen 4. Purple=Phosphorus 5. Orange=Nitrogen
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Plastic from milk Materials and Equipment The materials listed below are for doing the experimental procedure exactly as written. However‚ you can make changes to the experimental procedure in order to use a different size measuring cup and/or a stovetop rather than a microwave. * Mugs or other heat-resistant cups (4); they should all be identical so as not to introduce another variable (See Variables in Your Science Fair Project)‚ and large enough to hold more than 8 oz. of liquid * Masking
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Organic molecules are those primarily made up of carbon‚ hydrogen and oxygen. The common organic compounds of living organisms are carbohydrates‚ proteins‚ lipids‚ and nucleic acids. Each of these macromolecules (polymers) are made of smaller subunits (monomers). The bonds between these subunits are formed by dehydration synthesis. This process requires energy; a molecule of water is removed (dehydration) and a covalent bond is formed between the subunits . Breaking this bond is called hydrolysis; it requires
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Molecules of carbohydrates and fats consist of carbon‚ hydrogen‚ and oxygen atoms. Carbohydrates range from simple monosaccharides (glucose‚ fructose‚ galactose) to complex polysaccharides (starch). Fats are triglycerides‚ made of assorted fatty acid monomers bound to glycerolbackbone. Some fatty acids‚ but not all‚ are essential in the diet: they cannot be synthesized in the body. Protein molecules contain nitrogen atoms in addition to carbon‚ oxygen‚ and
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