Determination of Fatty Acids and Carbohydrate Monomers in Micro
... Each strain had been cultured on two slants of Liiwenstein-Jensen medium. Bacteria were collected from each slant and inoculated into Proskauer-Beck medium (Difco) at 37 "C for 28 d. The organisms were autoclaved, washed, lyophilized and stored in a vacuum desiccator at reduced pressure until use (L ...
... Each strain had been cultured on two slants of Liiwenstein-Jensen medium. Bacteria were collected from each slant and inoculated into Proskauer-Beck medium (Difco) at 37 "C for 28 d. The organisms were autoclaved, washed, lyophilized and stored in a vacuum desiccator at reduced pressure until use (L ...
Homework #1 BCHS 3304
... 8. Study exercises in FOB p 38 1, 3, 4, and 7. 9. Problems in FOB p 38 1, 3, 5, 7, 9, and 10. 10. Study Guide problems p17. 1, 3, 4, 6, 7, 8, 10, 11, 13, 15, and 17. 11. Proteins are made of amino acids. To calculate the molecular weight of a protein the mean residue weight is summed up for all cons ...
... 8. Study exercises in FOB p 38 1, 3, 4, and 7. 9. Problems in FOB p 38 1, 3, 5, 7, 9, and 10. 10. Study Guide problems p17. 1, 3, 4, 6, 7, 8, 10, 11, 13, 15, and 17. 11. Proteins are made of amino acids. To calculate the molecular weight of a protein the mean residue weight is summed up for all cons ...
Energy, Catalysis, and Biosynthesis
... Enzymes facilitate reactions in living systems. Figure Q3-25 presents an energy diagram for the reaction X→Y. The solid line in the energy diagram represents changes in energy as the product is converted to reactant under standard conditions. The dashed line shows changes observed when the same reac ...
... Enzymes facilitate reactions in living systems. Figure Q3-25 presents an energy diagram for the reaction X→Y. The solid line in the energy diagram represents changes in energy as the product is converted to reactant under standard conditions. The dashed line shows changes observed when the same reac ...
respiration revision quiz
... In the reactions of respiration, coenzymes become …………………. as substrates become …………………….. . These are necessary because the reactions are catalysed by inefficient dehydrogenase ………………… . Hydrogen ATO ...
... In the reactions of respiration, coenzymes become …………………. as substrates become …………………….. . These are necessary because the reactions are catalysed by inefficient dehydrogenase ………………… . Hydrogen ATO ...
Lecture: 27 Fatty acid and triacyl glycerol biosynthesis Biosynthesis
... ii. Intermediates in fatty acid synthesis are covalently linked to the sulfhydryl group of an acyl carrier protein (ACP) whereas intermediates in fatty acid breakdown are bonded to coenzyme A. iii. The enzymes of fatty acid synthesis in animals are joined in a single polypeptide chain called fatty a ...
... ii. Intermediates in fatty acid synthesis are covalently linked to the sulfhydryl group of an acyl carrier protein (ACP) whereas intermediates in fatty acid breakdown are bonded to coenzyme A. iii. The enzymes of fatty acid synthesis in animals are joined in a single polypeptide chain called fatty a ...
Metabolism & Enzymes
... causes enzyme to change shape conformational change active site is no longer functional binding site keeps enzyme inactive ...
... causes enzyme to change shape conformational change active site is no longer functional binding site keeps enzyme inactive ...
3. The Molecules of Cells
... • Nucleic acids are polymers of nucleotide monomers composed of – A five-carbon sugar – A phosphate group – A nitrogenous base-adenine (A), thymine (T), cytosine ( C), and guanine (G) in DNA; A, G, C, and uracil (U) in RNA Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings ...
... • Nucleic acids are polymers of nucleotide monomers composed of – A five-carbon sugar – A phosphate group – A nitrogenous base-adenine (A), thymine (T), cytosine ( C), and guanine (G) in DNA; A, G, C, and uracil (U) in RNA Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings ...
Nucleotide Metabolism Nucleotide sources - Rose
... The first reaction of the purine synthesis pathway, catalyzed by ribose-5phosphate pyrophosphokinase, produces phosphoribosylpyrophosphate (PRPP). PRPP is not committed to purine biosynthesis; it is also used for other processes (such as pyrimidine biosynthesis, histidine biosynthesis, and nucleotid ...
... The first reaction of the purine synthesis pathway, catalyzed by ribose-5phosphate pyrophosphokinase, produces phosphoribosylpyrophosphate (PRPP). PRPP is not committed to purine biosynthesis; it is also used for other processes (such as pyrimidine biosynthesis, histidine biosynthesis, and nucleotid ...
The 14-3-3 proteins in regulation of cellular metabolism - BORA
... In unicellular as well as multicellular organisms, metabolism needs to be tightly regulated according to demand of cellular processes such as cell growth, proliferation, heat production and mechanical transformations, e.g. muscle cell contraction and migration. At the organism level, different tissu ...
... In unicellular as well as multicellular organisms, metabolism needs to be tightly regulated according to demand of cellular processes such as cell growth, proliferation, heat production and mechanical transformations, e.g. muscle cell contraction and migration. At the organism level, different tissu ...
Lecture 27
... Nearly all fatty acids of biological origin have cis double bonds between C9 and C10 (D9 or 9-double bond). Additional double bonds occur at 3-carbon intervals (never conjugated). Examples: oleic acid and linoleic acid. In linoleic acid one of the double bonds is at an even-numbered carbon and the o ...
... Nearly all fatty acids of biological origin have cis double bonds between C9 and C10 (D9 or 9-double bond). Additional double bonds occur at 3-carbon intervals (never conjugated). Examples: oleic acid and linoleic acid. In linoleic acid one of the double bonds is at an even-numbered carbon and the o ...
C454_lect9 - chem.uwec.edu - University of Wisconsin
... transferring the CoASH from succinyl–CoA. It is then split into two Acetyl–CoA by a thiolase reaction ...
... transferring the CoASH from succinyl–CoA. It is then split into two Acetyl–CoA by a thiolase reaction ...
UNIT I Biomolecules - McGraw
... For systems that obey Michaelis–Menten kinetics, when the initial velocity of product formation (v) is plotted against the initial substrate concentration ({S}), a data set is obtained that can be fit to a rectangular parabolic function, as shown in Figure 1-12. This function asymptotically approach ...
... For systems that obey Michaelis–Menten kinetics, when the initial velocity of product formation (v) is plotted against the initial substrate concentration ({S}), a data set is obtained that can be fit to a rectangular parabolic function, as shown in Figure 1-12. This function asymptotically approach ...
Name: Class: ______ Date: ______ ID: A Intro to College Biology
... c. Organisms resist temperature changes, although they give off heat due to chemical reactions. d. Water can act as a solvent, e. The pH of water remains exactly neutral. 8. Which bonds must be broken for water to vaporize? a. ionic bonds b. nonpolar covalent bonds c. polar covalent bonds d. hydroge ...
... c. Organisms resist temperature changes, although they give off heat due to chemical reactions. d. Water can act as a solvent, e. The pH of water remains exactly neutral. 8. Which bonds must be broken for water to vaporize? a. ionic bonds b. nonpolar covalent bonds c. polar covalent bonds d. hydroge ...
9 Proteins Chapter 9 Proteins
... • Proteins perform a number of vital functions: – Enzymes are proteins that act as biochemical catalysts. – Many proteins have structural or mechanical functions (e.g., actin and myosin in muscles). ...
... • Proteins perform a number of vital functions: – Enzymes are proteins that act as biochemical catalysts. – Many proteins have structural or mechanical functions (e.g., actin and myosin in muscles). ...
Basic Enzymology
... • The International Enzyme Commission (EC) has recommended a systematic nomenclature for enzymes. • This commission assigns names and numbers to enzymes according to the reaction they catalyze. An example of systematic enzyme name is EC 3.5.1.5 urea aminohydrolases for the enzyme that catalyzes the ...
... • The International Enzyme Commission (EC) has recommended a systematic nomenclature for enzymes. • This commission assigns names and numbers to enzymes according to the reaction they catalyze. An example of systematic enzyme name is EC 3.5.1.5 urea aminohydrolases for the enzyme that catalyzes the ...
ENZYMES
... – Enzymes work best at an optimum temperature • Optimum temperature for human enzymes is ______, C or _________, F ...
... – Enzymes work best at an optimum temperature • Optimum temperature for human enzymes is ______, C or _________, F ...
A-PC3267 Lect 9 2007 - NUS Physics Department
... tiny. Membranes resist dissolving even in environments with extremely low phospholipid concentration. ...
... tiny. Membranes resist dissolving even in environments with extremely low phospholipid concentration. ...
Fuel Basics
... Fills immediate need until the other 2 energy systems can produce ATP Can produce large amounts of ATP for 5-15 seconds Does not need oxygen 1 step process - Creatine Phosphate gives a phosphate to build ATP Example: Sprinter bursts from starting block ...
... Fills immediate need until the other 2 energy systems can produce ATP Can produce large amounts of ATP for 5-15 seconds Does not need oxygen 1 step process - Creatine Phosphate gives a phosphate to build ATP Example: Sprinter bursts from starting block ...
Lecture 7- 24 October 2013 Vitamins in metabolism and regulation
... Explain the connections between source and function of each of the water soluble vitamins ...
... Explain the connections between source and function of each of the water soluble vitamins ...
Protein Biosynthesis at Three Levels of Modifications
... 1. Attachment of GlcNAc-β-Ser/Thr to eukaryotic nuclear and cytosolic proteins is as dynamic and possibly as abundant as Ser/Thr phosphorylation. 2. Known GlcNAc-β-Ser/Thr attached proteins include cytoskeletal proteins and their regulatory proteins; viral proteins; nuclear-pore, heat-shock, tumor-s ...
... 1. Attachment of GlcNAc-β-Ser/Thr to eukaryotic nuclear and cytosolic proteins is as dynamic and possibly as abundant as Ser/Thr phosphorylation. 2. Known GlcNAc-β-Ser/Thr attached proteins include cytoskeletal proteins and their regulatory proteins; viral proteins; nuclear-pore, heat-shock, tumor-s ...
Selective toxicity of antibiotics
... All microorganisms require elemental oxygen to build their biochemical components, but not all of them require atmospheric oxygen. Most heterotrophic bacteria obtain oxygen from the same molecule that serves as a carbon source (CH2O). Autotrophs obtain oxygen from CO2. Most aerobic bacteria have an ...
... All microorganisms require elemental oxygen to build their biochemical components, but not all of them require atmospheric oxygen. Most heterotrophic bacteria obtain oxygen from the same molecule that serves as a carbon source (CH2O). Autotrophs obtain oxygen from CO2. Most aerobic bacteria have an ...
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.