Chemical engineer

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  • Substrate Specificity Of Catechol

    Result and discussion: Substrate specificity The substrate specificity for the PPO is represented in table. The Km values for catechol, L-DOPA, L-tyrosine, and p-Cresol are 4.12 × 10-3, 16.4 × 10-3, 6.12 × 10-3, and 5.01 × 10-3, respectively. Catechol was the best suited substrate, having the lowest Km value and highest Vmax value when compared to other 3 substrates (Table 1). Table 1: Substrate specificity of PPO enzyme Substrates Specific activity (units mg-1 protein) Km (µM) Vmax (abs min-1)…

    Words: 1087 - Pages: 5
  • Sonogashira Synthesis

    Since suitable crystals for X-ray single crystal analysis was not obtained, to have reliable structural information, HR-TEM analysis of the product was carried out. The average size of the assembly calculated from HR-TEM measurement is found to be 2.8 nm which is in good agreement with the size of the previously reported Pd6L8 assembly where L is the non N-methylated (2.5nm, Fig. 2).9 As first step, to explore the catalytic activity of 1 in copper and phosphine free Sonogashira coupling reaction…

    Words: 881 - Pages: 4
  • Enzyme Concentration Lab Report

    students used enzymes as catalysts in order to speed up the reaction processes involved in several tests. Enzymes are substances produced by living organisms that act as a catalyst, while a catalyst is a substance that increases the rate of the chemical reaction. Furthermore, varying amounts of pH and enzymes were added to the mixture in order to determine the substance’s rate of reaction. When the reaction occurs, students are supposed to study and observe it until the substance becomes…

    Words: 1276 - Pages: 6
  • Enzymes

    Boris Kozarski Lab partner: Donovan Ortiz 9/23/16 Bio 118: A-65 GTA: Mian Li, UGTA: Shelby Schaffer Intro: Enzymes are important biological molecules that help catalyze numerous reactions in the body. They are an arrangement of proteins designed to serve very specific roles. Enzymes contain active sites that substrates bind to. The enzymes then help orient those substrates so they achieve ideal reaction conditions. As a result, substrates are broken down much faster than they would on their own…

    Words: 815 - Pages: 4
  • Heat Dissolving Lab Report

    How the changing mass of solute effects the heat given out when dissolved in water Aim To investigate how the changing mass of a solute will affect the energy given out. Introduction Dissolving is when a solute is mixed into a solvent to form a solution. Dissolving can be either endothermic or exothermic. Endothermic reactions happen when the energy given out when bonds are broken, is greater than the energy given out when bonds are made. As more energy is used and taken in, the surroundings…

    Words: 1353 - Pages: 6
  • The Mammalian Nervous System: Neurons

    cell. Entry of Ca2+ promotes the fusion of synaptic vesicles to the pre-synaptic membrane. Each synaptic vesicle holds thousands of chemical neurotransmitter molecules. The vesicles discharge their contents (chemical neurotransmitters) into the synaptic cleft (7, 8), the area between pre-synaptic membrane and postsynaptic membrane of the subsequent neuron. Chemical neurotransmitters diffuses across the synaptic cleft and travel towards the post-synaptic membrane of the target cell in less than a…

    Words: 947 - Pages: 4
  • Intern Synapse Case Study

    Short-term plasticity at the ORN  PN synapse could result in PN responses that are strongest during the rising phase of the ORN response since the ORN  PN synapses display short-term depression that causes ORN spikes that arrive later to produce smaller postsynaptic potentials than the ones produced by earlier spikes. In depressing synapses, successive action potentials result in smaller and smaller postsynaptic responses. The reduction in postsynaptic responses could be due to smaller amount…

    Words: 1054 - Pages: 4
  • Animal Body Temperature Analysis

    In order to survive under several environmental influences, animals must possess biological mechanisms which enable them to regulate and maintain their internal environment. Temperature is one of abiotic factors that are inexorably linked to every animal’s physiological functions since it is considered a strong source of selective pressure on animals (Miller, 2010). Animals are categorized into thermoregulators and thermoconformers based on their mechanisms to maintain their internal environment…

    Words: 824 - Pages: 4
  • Analysis Of The Wingate Cycle Ergometer

    The 'Wingate Cycle Ergometer Test' is an anaerobic test that is performed on a cycle ergometer. Eg. Monark. (Vandewalle et al. 1987). The aim of our test is to measure Peak Power Output(PPO), Relative Peak Power Output(RPP), Fatigue Index(FI) and Anaerobic Capacity(AC) throughout the Wingate Anaerobic Test. For both our participants we will compare our findings and provide an explanation for the similarities/differences we encounter between the two. Peak Power Output is the highest power output…

    Words: 846 - Pages: 4
  • Alkaline Hydrolysis Essay

    2.1.2. Alkaline hydrolysis Alkaline hydrolysis is a simple process in which the protein is solubilized by heating followed by the addition of calcium, sodium or potassium hydroxide as alkaline agents and maintaining the temperature at a range between 25-55 °C (Pasupuleti & Braun, 2010). During alkaline hydrolysis of proteins, some amino acids like serine and threonine are damaged during alkaline hydrolysis, however, tryptophan remains intact. Also, this process causes racemization of amino acids…

    Words: 979 - Pages: 4
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