2) . If a typical membrane is 8 nm wide‚ how many such membranes would have to be aligned up to see in a light microscope? How many with an electron microscope? i) Resolution/resolving power of light microscope = 0.2 nM = 200 nM # Membranes need to be aligned to be seen by light microscope = 200 nM/8 nM = 25 membranes ii) Resolution/resolving power of electron microscope = 2 nM Therefore‚ a single membrane will be visible 3) Human ribosomes are roughly spherical and have a diameter
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PHYSICS OF THE PAST One hundred years ago‚ in a poky apartment in Bern‚ Switzerland‚ Albert Einstein‚ then just a 26-year-old patent office clerk still working part-time towards his PhD‚ published five ground breaking scientific papers. Each of these papers‚ written during Einstein’s annus mirabilis ‚ has become a "classic" in the history of science: On a Heuristic Viewpoint Concerning the Production and Transformation of Light ‚ which discusses optical photons and photoelectric effects. Molecular
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cancer therapy. Quercetin is extracted and purified using chromatographic and nuclear magnetic resonance (NMR) techniques. PLGA-heparin (PLGAh) and PLGA-heparin-quercetin (PLGAh+Q) loaded microspheres were characterized for morphology using scanning electron microscopy (FESEM). The PLGAh and PLGAh-Q microspheres were tested for its cytotoxicity against MCF-7 lines.
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chloroplasts lie thylakoids‚ a membrane system that contains pigments which are used to capture light energy. Photosynthesis is also responsible for reducing carbon dioxide into glucose‚ because reducing power is present. Reducing power is made after electrons get excited in the chlorophyll molecule. To carry out the process of reducing carbon dioxide into glucose‚ hydrogen ions must be added to the carbon of carbon dioxide where ATP and NADPH (reducing power) are used to convert carbon dioxide to sugar
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Quantum Mechanics V H Satheeshkumar Department of Physics and Center for Advanced Research and Development Sri Bhagawan Mahaveer Jain College of Engineering Jain Global Campus‚ Kanakapura Road Bangalore 562 112‚ India. vhsatheeshkumar@gmail.com October 12‚ 2008 Who can use this? The lecture notes are tailor-made for my students at SBMJCE‚ Bangalore. It is the second of eight chapters in Engineering Physics [06PHY12] course prescribed by VTU for the first-semester (September 2008 - January 2009)
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Review for Microbiology Test #1 (Lesson 1-5) Lesson 1 What is the #1 killer of man worldwide? Heart Disease. What is the #3 killer in the US? Infectious Disease. What is the importance of MO in our world? List 6-8 reasons MO are important. Can’t live in Germ Free World‚ Keeps Economy running‚ Agriculture‚ Medication‚ Baking‚ Cosmetics‚ Paints‚ Fertilizers‚ Helps develop immune system‚ Decomposition of dead plants and animals to enrich the soil. What are the 4 groups of people most prone to
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M07/4/PHYSI/SP3/ENG/TZ1/XX+ IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI 22076512 physics sTANDARD level pApeR 3 Candidate session number Thursday 3 May 2007 (morning) 0 1 hour 0 INSTRUCTIONS TO CANDIDATES • • • • Write your session number in the boxes above. Do not open this examination paper until instructed to do so. Answer all of the questions from two of the Options in the spaces provided. At the end of the examination
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Micro Quantitative Meter Kilo Chapter 2 – The Chemistry of Life Objectives: 1. Identify the 3 subatomic particles‚ and state the locations and charges of each. 2. Use the periodic table to determine the numbers of protons‚ neutrons and electrons in an atom. 3. Define the term isotope and describe how the isotopes of an element are similar and how they are different. 4. Identify the subatomic particle involved in chemical bonding‚ and describe the two main types of bonds. 5. Be able to
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of the first organelles to be discovered and observed in detail. Camillo first observed the Golgi under his microscope and termed the structure the “internal reticular apparatus.” There were many people who did not believe that Camillo had made this discovery‚ just dismissing it as dust on his lenses or merely an optical illusion. It wasn’t until years later when an electron microscope showed the images of the Golgi‚ just as Camillo had drawn them when he first observed them. The Golgi apparatus
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the microscope stage and observed the cells in it at low and high magnification‚ drawing a diagram for both of them. At the end I have taken in consideration all my observation and come to the conclusion that‚ indeed‚ cells are existent in both living beings but their not completely alike. Background To be able to complete this lab a person should know the animal cell and the plant cell structure to the able to identify and label the cell components. Knowing the components of a microscope and
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