Case Study: Newsflash! Transport Proteins on Strike! 1. What is the meaning behind the PHOSPHOLIPIDS’ chant? Phospholipids make up most of the cell membrane‚ in a phospholipid bilayer. Phospholipid molecules form two layers‚ with the hydrophilic (water loving) head facing the extracellular fluid and the cytosol (intracellular) fluid‚ and the hydrophobic (not water loving) tails facing one another. The cell membrane is constructed in such a way that it is semipermeable‚ and allows oxygen
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Protein Article Research Kristen Roberts Immunity is the ability of a body to resist infection or to counter the harmful toxins produced by infecting organisms (Martin‚ Hine 2008). Antibodies and white blood cells are defensive cells and substances‚ these things produce an immune response. If such an encounter such as‚ bacteria‚ viruses‚ fungi and parasites occur can make the macrophages engulf the microorganism and secretes cytokines and chemokines. This attracts immune cells to the infected
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Cheyenne Kenny September 29‚ 2014. Biology Properties Of Water Adhesion How does temperature change affect surface tension? As the temperature of a liquid increases‚ its surface tension decreases. When water heats up‚ the movement of its molecules disrupts the imbalanced forces on the surface of the water and weakens its sheet-like barrier of tightly bound molecules‚ thereby lowering the surface tension. This is why hot water is more effective when cleaning; its low surface
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Specificity of Protein-Ligand Binding 1). One can conclude that Orange G. has the lowest affinity for the albumin. In the experiment the concentration of Orange G that binds to protein was a lot less than either Ponceau S. or Bromophenol blue. The ligand with the highest affinity to BSA was a little more difficult to decipher. The experiment shows that all of the 2 µL of both Ponceau S. and Bromophenol blue bind to the BSA. However‚ when 5 µL of the ligand is added the BSA is saturated and cannot
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Experiment 2 Quantification of Proteins in Solution by Spectrophotometer Lab bench# 1 Introduction: Absorption spectroscopy is a common method for finding the concentration of proteins or protein complexes in a solution. Proteins absorb light at specific wavelengths and can be defined by the equation A = log (Io/I). This equation states that an absorbance at a specific wavelength‚ A is equal to the log of the ratio of incident light intensity (Io)‚ to transmitted light intensity (I). A
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experiment‚ we will be testing three different proteins to see if they denature at the same temperature. A protein is a molecule containing amino acids created in ribosomes that have many functions‚ including being an enzyme and transporter‚ structuring‚ translating genetic information‚ and serving as a channel for charged molecules to pass through the cell membrane. As a molecule‚ a protein is shaped like a coil (Food Science Basics 2014). Denaturation is when a protein’s shape changes due to the
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Written Video Reaction Papers: On the Course Schedule you will see several fascinating videos that focus on questions we are addressing in the course. For each unit you should choose one of these videos to view. For that video‚ you will write a formal reaction paper that will be due as listed on the Course Schedule. The assignments system will not accept papers after this period. 1. ✓Do use essay form. 2. ✓Don’t include extra space between paragraphs -- simply hit the return key one time at
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Enzymes are globular proteins that are synthesized by the ribosomes in a cell. They act as catalysts during biological reactions; therefore‚ enzymes are able to speed up these reactions without undergoing a permanent change themselves. These proteins are able to do this by lowering the activation energy of a reaction. To add on‚ enzymes require specific conditions under which they can work best. Reactions occur at faster rates when the temperature is higher. However‚ the rate of an enzyme-catalyzed
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Experiment 2: Estimation of protein concentration Name: Wong Jiun Hao ID: 00000011136 Cohort: BM114 Module: Biological Science Table of Contents Title 1 Table of Contents 2 Introduction 3 Objectives 4 Procedure 4 Results 5-6 Discussion 7-8 Conclusion 9 References 9 Introduction The concentration of protein in a sample can be obtained by using the Bradford protein assay method. The method requires a spectrophotometer
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17 May 2013 Are Protein Shakes Good For You? According to Flex bodybuilding magazine‚ protein shake is the number one selling bodybuilding supplement. Protein powders have been around for years‚ but they are currently gaining popularity and becoming more widely used for their health benefits. In fact protein is one of three food components we require in large quantities. Others are carbohydrates and fats. Your body uses proteins in your diet to build new cells‚ maintain tissues‚ and synthesize
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