considerably smaller than that of reversible neutralization‚ Kinetic evidence shows that even a single Ab molecule can neutralize a virion. Such neutralization is generally produced by Ab molecules that establish contact with 2 antigenic sites on different monomers of a virion‚ greatly increasing the stability of the complexes. An example of
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Biology Exam Review Unit One – Biochemistry What is an isotope? Isotope - An isotope is all atoms of the same element that have the same number of protons‚ but they may have different numbers of neutrons in the nucleus. - This means that all atoms with the same atomic number can have different atomic masses. - Because they have the same number of protons and electrons‚ they behave exactly the same in chemical reactions. Radioisotope - The nuclei of some isotopes of an element are unstable
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backbone is that part of the chain on the main "path" linking a large number of repeat units together. To customize the properties of a plastic‚ different molecular groups "hang" from the backbone (usually they are "hung" as part of the monomers before the monomers are linked together to form the polymer chain). The structure of these "side chains" influence the properties of the polymer. This fine tuning of the properties of the polymer by repeating unit’s molecular structure has allowed plastics
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Biochemistry- The Basics An Atom is the basic unit of a chemical element ( smallest unit for measuring chemical & physical properties) Smallest particle of an element is an atom A Particle is a small portion of matter Matter is composed of elements___ Matter makes up everything in the universe. An Element is a pure substance that cannot be broken down into a simpler substance. ex. carbon‚ hydrogen‚ etc A molecule is a group of atoms bounded together ex O2 A chemical compound
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Name: David Kennedy Date: 11/5/14 Project No: 131 Title: Butyl 2-Cyano-(3‚5 dichloro-phenyl)-2-propenoate Abstract: The targeted trisubstituted ethylene compound Butyl 2-Cyano-(3‚5 dichloro-phenyl)-2-propenoate and its copolymer with styrene was prepared in this lab. The base catalyzed Knoevengael condensation of butyl cyanoacetate and corresponding aldehyde led to the forming Butyl 2-Cyano-(3‚5 dichloro-phenyl)-2-propenoate. The analyses that were used to prove its composition and structure
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Biology: Concepts and Connections‚ 6e (Campbell) Test Bank (1) Part (1) Chapter 1 Introduction: The Scientific Study of Life 1) Which of the following statements about the leopard is false? A) Leopards are the largest cat in the genus Panthera. B) Leopards‚ like lions‚ can roar. C) Leopards prefer to eat their kill in trees. D) Leopards are well-adapted for nocturnal hunting. E) Leopards are normally solitary animals. Answer: A Topic: Opening Essay Skill: Factual
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*What is Biochemistry?* * Biochemistry also known as Chemistry of life is the study of chemical substances and vital processes occurring in living organism. Biochemistry governs all living organisms and living processes. * Study of chemical processes in living organisms‚ including‚ but not limited to‚ living matter. * Biochemistry is the science dealing with the chemical composition and chemical reactions happening within‚ and between the living cells of all organisms. → The
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CHAPTER I INTRODUCTION Pollution is one of the main problems the world faces today. One of the reasons is the overload of non-biodegradable objects like plastics‚ cans and Styrofoam. The invention of plastics and Styrofoam made a huge change in our society and it helped us in many ways. But it is also one of the main pollutants that destroy our planet. Because of these we devised a way to recycle used Styrofoam‚ and this is to make glue out of it. This glue can help reduce the number of Styrofoam
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Chemistry revision Atoms elements and compounds Atom-the smallest part of an element that can still be recognized as an element Element-a substance made up of only one type of atom. An element cannot be broken down chemically into any simpler substance Nucleus-middle of the atom‚ which contains protons and neutrons Electron-tiny particle‚ which surrounds the nucleus with a negative charge Compound-when two elements react and combine together which contain more than one element. There
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IGCSE Chemistry 2012 exam revision notes by Samuel Lees Contents: 1. The particulate nature of matter 2. Experimental techniques 2.1 Measurement 2.2 (a) Criteria of purity 2.2 (b) Methods of purification 3. Atoms‚ elements and compounds 4.1 Atomic structure and the Periodic Table 4.2 Bonding the structure of matter 3.2 (a) Ions and ionic bonds 3.2 (b) Molecules and covalent bonds 3.2 (c) Macromolecules 3.2 (d) Metallic bonding 3 Stoichiometry 4
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