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... Glucoamylase is a well recognized amylolytic enzyme used in food industry, which is generally produced by, Aspergillus niger, Aspergillus wentii, Aspergillus terreus and Aspergillus oryzae. Its production was optimized under solid state fermentation in potato dextrose agar medium. Different substrat ...
Path of Glucose Breakdown and Cell Yields of a
Path of Glucose Breakdown and Cell Yields of a

The final publication is available at Copyright - RiuNet
The final publication is available at Copyright - RiuNet

... lower than in infusions (average values considering all treatments:   0.56, 0.43,   0.11 and 0.97 mg/g, ...
Influence of Valine Analogues on Protein Synthesis of Chicken
Influence of Valine Analogues on Protein Synthesis of Chicken

... 45 min. After centrifugation (5,000×g, 3 min, 4℃), the supernatant was discarded and the pellet was mixed with 15 ml of Medium 199 including 2.5 μg/ml Fungizone, 100 units penicillin, 100 μg/ml streptomycin, 50 μg/ml gentamycin and 10% FCS. Minced muscles were pipetted several times and filtrated by ...
essential-biology-03-chemistry-of-life
essential-biology-03-chemistry-of-life

... 29. In the space below, draw and label a diagram explaining the process of DNA replication. Pay attention to the requirements of your assessment level. ...
Natural antioxidants
Natural antioxidants

... DAA is unstable, easy hydrolysed (opening of lactone ring), products already have not a vitamin activity Function in organism Anti-scorbutic factor  co-enzyme of prolylhydroxylase;  it catalyze hydroxylation of proline and formation of net structure of collagen from globular (water soluble) proto- ...
The Endoplasmic Reticulum Glucosyltransferase
The Endoplasmic Reticulum Glucosyltransferase

... unique property as it glucosylates glycoproteins displaying native-close, molten globule-like but not random coil or compactnative conformations. Monoglucosylated glycans are specifically recognized by two ER resident lectins, calnexin (CNX) and calreticulin (CRT), in charge of retaining folding int ...
COX-1 And COX-2 Enzymes Synthesize Prostaglandins and Are
COX-1 And COX-2 Enzymes Synthesize Prostaglandins and Are

... acid, a fatty acid in cell membranes, into prostaglandins, modified fatty acids attached to a ring of five carbons. COX stands for cyclooxygenase meaning that it is an enzyme that oxidizes a substrate. The prostaglandins that the two enzymes produce are identical, but get converted into different pa ...
File - Mr. Arnold`s Classes
File - Mr. Arnold`s Classes

... 20. Append the diagram in (19) with a complementary strand of nucleotides, forming a doublestrand of DNA. 21. The diagram shows a simplified double helix. How does a double helix form? What bonds hold it in position? ...
Biochemistry - Brookwood High School
Biochemistry - Brookwood High School

... – weak attraction between hydrogen and oxygen atoms in different molecules ...
Molecular Plant-Microbe Interactions 13:
Molecular Plant-Microbe Interactions 13:

... according to Yonaha and Toyama (1980). Glutamate decarboxylase (GAD, EC 4.1.1.15) activity was measured by the method of Fonda (1985) as modified by Vézina et al. (1988). The bacteria used to measure GAD activity were grown in a minimal media containing L-glutamate as carbon source (Labidi et al. 19 ...
CELLULAR ENERGY METABOLISM DURING FETAL
CELLULAR ENERGY METABOLISM DURING FETAL

... adult heart (1, 2) . Although the developing heart exhibits tightly coupled oxidative phosphorylation with citric acid cycle intermediates as substrates (3), little is known of the capacity of the fetal heart to utilize fatty acids as energy-yielding substrates. Fatty acid oxidation by mitochondria ...
2012
2012

... A) In the active site of chymotrypsin, a ___His[1 points]_____ residue increases the nucleophilicity of a nearby ____Ser[1 points]______ residue, which makes a covalent bond to the substrate. B) A hydrophobic pocket provides_________ substrate specificity [2 points]________ C) The oxyanion hole prov ...
Protein Stability Protein Folding
Protein Stability Protein Folding

... the earth, living off H2 formed by chemical decomposition of rocks! • The proteins found in thermophilic species are much more stable than their mesophilic counterparts (although this corresponds to only 3 - 8 kcal/mol of free energy). • However, the overall three-dimensional structures will be esse ...
Effect of soybean meal particle size on amino acid and energy
Effect of soybean meal particle size on amino acid and energy

... The experiment evaluated the ileal digestibility coefficients of commercial SBM processed to four different particle sizes and to compare the results to an unground SBM from another processor and to a soy protein concentrate source. One source of SBM (48% CP) had an average particle size 949 ␮m and ...
An overview of lactic acid bacteria
An overview of lactic acid bacteria

... (components of respiratory chains) and therefore cannot generate ATP by creation of a proton gradient. The LAB can only obtain ATP by fermentation, usually of sugars. Since they do not use oxygen in their energy production, lactic acid bacteria happily grow under ...
A Study of the Asp110–Glu112 Region of EcoRII Restriction
A Study of the Asp110–Glu112 Region of EcoRII Restriction

... “Pro111” codons of the ecoRII gene was performed using the pR224H plasmid. To facilitate initial selection of mutants, site-directed mutagenesis of the “Glu112” codon of the ecoRII gene was performed using the previously constructed mutant plasmid pR224HB (“Pro111” → “Ala111”), which had no BamHI re ...
Chem*3560 Lecture 11: Regulation by proteolytic cleavage
Chem*3560 Lecture 11: Regulation by proteolytic cleavage

... is structurally equivalent to Lys6 and Ile7 in trypsinogen. The newly exposed N-terminal Ile is similarly positioned to make an ion pair with Asp 194, and the mechanism of activation is the same as for trypsin. The immediate product is called π -chymotrypsin and is fully active as a protease. Self-e ...
Chapter 2 Chemistry of Life - Cardinal Newman High School
Chapter 2 Chemistry of Life - Cardinal Newman High School

... – Very large molecules made up of amino acids held together in long, folded chains by peptide bonds – Structural proteins • Form structures of the body • Collagen is a fibrous protein that holds many tissues together • Keratin forms tough, waterproof fibers in the outer layer of the skin Copyright © ...
FTIR Analysis of Protein Structure
FTIR Analysis of Protein Structure

... This leads to an intermediate level of protein structure called secondary structure. The types of secondary structure includes the αhelices and βsheets, which allow the amides to hydrogen bond very efficiently with one another. Both are periodic structures. In an α-helix the polypeptide backbone is ...
Purification and characterization of the 1-3
Purification and characterization of the 1-3

Article Evolution of a Genome-Encoded Bias in Amino Acid
Article Evolution of a Genome-Encoded Bias in Amino Acid

... which the cell might not recover. A logical evolutionary defense would be to remove the vulnerability—to bias the biosynthetic enzymes against the use of their cognate amino acid. Our first hint that organisms might evolve such a molecular mechanism came in the early days of protein sequencing when ...
PowerPoint Presentation - Mediterranean Emergency Medicine
PowerPoint Presentation - Mediterranean Emergency Medicine

... Recommended Dietary Thiamine 1 mg/day 0.5 mg/1000kcal Thiamine depletion develops within 18 days in thiamine free diet. Normally: organ meats, yeast, eggs, green leafy vegetables. Poorly absorbed in the presence of ethanol. J Nutr 1965;85:297-304. ...
Use to make Test Corrections (Answer in complete sentence +10 pts
Use to make Test Corrections (Answer in complete sentence +10 pts

... a. carbon in a series of steps. b. the mitochondrial membranes. c. oxygen in a series of steps. d. hydrogen ions. e. NADH in a series of steps. 6. Select the molecule that contains the most stored chemical energy: a. lactate. b. oxygen. c. carbon dioxide. d. water. e. ethyl alcohol. 7. Light behaves ...
INTRODUCTION
INTRODUCTION

... fragmentation of the mitochondrial reticulum there is one nucleoid per minimal sized fragment. The crystal structure of TFAM shows that it bends mtDNA in a sharp U-turn. Several other proteins are a part, often transiently, of the nucleoid including prohibitin, single-stranded DNA-binding protein, m ...
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Metabolism



Metabolism (from Greek: μεταβολή metabolē, ""change"") is the set of life-sustaining chemical transformations within the cells of living organisms. These enzyme-catalyzed reactions allow organisms to grow and reproduce, maintain their structures, and respond to their environments. The word metabolism can also refer to all chemical reactions that occur in living organisms, including digestion and the transport of substances into and between different cells, in which case the set of reactions within the cells is called intermediary metabolism or intermediate metabolism.Metabolism is usually divided into two categories: catabolism, the breaking down of organic matter by way of cellular respiration, and anabolism, the building up of components of cells such as proteins and nucleic acids. Usually, breaking down releases energy and building up consumes energy.The chemical reactions of metabolism are organized into metabolic pathways, in which one chemical is transformed through a series of steps into another chemical, by a sequence of enzymes. Enzymes are crucial to metabolism because they allow organisms to drive desirable reactions that require energy that will not occur by themselves, by coupling them to spontaneous reactions that release energy. Enzymes act as catalysts that allow the reactions to proceed more rapidly. Enzymes also allow the regulation of metabolic pathways in response to changes in the cell's environment or to signals from other cells.The metabolic system of a particular organism determines which substances it will find nutritious and which poisonous. For example, some prokaryotes use hydrogen sulfide as a nutrient, yet this gas is poisonous to animals. The speed of metabolism, the metabolic rate, influences how much food an organism will require, and also affects how it is able to obtain that food.A striking feature of metabolism is the similarity of the basic metabolic pathways and components between even vastly different species. For example, the set of carboxylic acids that are best known as the intermediates in the citric acid cycle are present in all known organisms, being found in species as diverse as the unicellular bacterium Escherichia coli and huge multicellular organisms like elephants. These striking similarities in metabolic pathways are likely due to their early appearance in evolutionary history, and their retention because of their efficacy.
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