orbit thus releasing more energy and waves of shorter wavelengths. 3. a. Draw the energy-level diagram and write the electronic configuration for zirconium (element 40). (3 marks) Energy-level diagram for zirconium is drawn below: 4d 5s 4p 3d 4s 3p 3s 2p 2s 1s Electronic configuration for zirconium is given below: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2 b. Use the diagram to explain why the Zr4+ ion exists. (2 marks) When the outer orbitals are
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The different cell membrane transport mechanisms The cell membrane is referred to as a ‘fluid mosaic model’ because the protein part within the cell membrane used to be though of as an even layer spread over the outside and the inside of the phospholipid. Now we are starting to think that it is spread unevenly‚ more like a mosaic than a layer. The phospholipid part of the cell membrane is fluid; this means that its molecules are constantly moving about. Through the molecules constantly moving
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2012 (Submit into Mr. Ng Poh Kiat’s pigeon box) Instructions: This is an individual assignment. Answer both Section A and Section B. Your answers MUST be in written form. Marks will be deducted if printed copies‚ photocopies or electronic formats are submitted. Please submit only the answer sheet with your name and student ID on it. Marks will be deducted for late submission. Section A (6 marks) 1. What is the definition of mass? A. How much something weighs. B. How hard something
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The Small Intestine Anatomy and Physiology I 3/10/2014 The majority of the digestive process is done by the small intestine‚ absorbing almost all of the nutrients you receive from foods into your bloodstream. The small intestine begins at the pyloric sphincter of the stomach and coils around the abdominal cavity‚ and then opens into the large intestine. “The intestines process about 2.5 gallons of food‚ liquids and bodily waste every day.” (Inner Body) There are three features that the small
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. Chemistry helps sustain bacteria by protecting the bacteria from outside organisms in the environment out and keeping the bacteria’s contents intact. The Cell Membrane: Is a phospholipid bilayer that completely surrounds a bacterial cell. Cell membrane acts as a highly selective barrier. This barrier prevents materials from diffusing into and out of the cell. This allows the cell to take up chemicals and nutrients needed for survival while keeping the cell components separated from the environment
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1961 | No. | Title | Section - 001 | Short title‚ extent and commencement | | Section - 002 Part A | Definitions [Clause (1) to Clause (15)] - "Advance Tax" to "Charitable Purpose" | | Section - 002 Part B | Definitions [Clause (15A) to Clause (30)] - "Chief Commissioner" to "Non-resident" | | Section - 002 Part C | Definitions [Clause (31) to Clause (48)] - "Person" to "Zero Coupon Bond" | | Section - 003 | Previous year defined | | Section - 004 | Charge of income-tax
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the branch of economics that deals with which of the following topics? A) The behavior of individual consumers B) Unemployment and interest rates C) The behavior of individual firms and investors D) B and C E) A and C Answer: E Diff: 1 Section: 1.1 2) A Rolling Stones song goes: "You can’t always get what you want." This echoes an important theme from microeconomics. Which of the following statements is the best example of this theme? A) Consumers must make the best purchasing
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Purpose: Examine the role of the cell membrane in the cell by disrupting its function using temperature (Biology 107 Laboratory Manual 2014). This will improve the general understanding of optimal growing temperatures and the breakdown of the cell membrane Procedure: Betacyanin solution of a known concentration was diluted to create a dilution series‚ then placed in a spectrophotometer set to 525 nm. The absorbance of the dilution was used to create a standard curve for betacyanin. Discs of living
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Biological Membranes: A simulation Introduction Diffusion is the process by which collisions between molecules cause to spread apart. This movement is described as movement from an area of greater concentration to an area of lower concentration. Hence‚ diffusion continues until the molecules are equally distributed. This is to ensure that molecules have reached a state of equilibrium. Diffusion occurs spontaneously‚ no energy is involved. In cells‚ Diffusion occurs through cell membrane which is
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PROPERTY DIAGRAMS OF PURE SUBSTANCES SUBJECT : ENGINEERING THERMODYNAMICS CONTENTS: * Phase and pure substance * Properties of a substance * P-V diagram for a pure substance * P-T diagram for a pure substance * P-V-T surface * T-S diagram for a pure substance * h-s diagram for a pure substance Thermodynamic Properties * Characteristics by which physical properties of system may be described. e.g. pressure‚ volume‚ temperature‚ entropy‚ enthalpy etc
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