1. Spontaneous generation was first proposed as A. A concept to
... C. Are variations of the plasma membrane D. Are new forms of life that arose inside other cells E. Were part of the original protocell from the beginning 60. The term ____________ refers broadly to compounds that contain carbon. ________________________________________ 61. The most important of the ...
... C. Are variations of the plasma membrane D. Are new forms of life that arose inside other cells E. Were part of the original protocell from the beginning 60. The term ____________ refers broadly to compounds that contain carbon. ________________________________________ 61. The most important of the ...
A novel species of thermoacidophilic archaeon, Sulfolobus
... suspension was diluted 100-fold with sterile water. An aliquot (0.1 ml) of the liquid was then mixed with 30 ml modified Allen's medium containing Gelrite (0.4 O h ) and poured into a Petri dish in order to isolate individual colonies (Brock et al., 1972). After incubation at 70 "C for 2 weeks, larg ...
... suspension was diluted 100-fold with sterile water. An aliquot (0.1 ml) of the liquid was then mixed with 30 ml modified Allen's medium containing Gelrite (0.4 O h ) and poured into a Petri dish in order to isolate individual colonies (Brock et al., 1972). After incubation at 70 "C for 2 weeks, larg ...
Identification of a putative flexible loop in Arabidopsis glutathione
... similarity with the E. coli enzyme has been difficult to establish. Alignment of the known eukaryotic sequences with the E. coli protein, using the Macaw computer program [22], suggested that a small region of the E. coli amino acid sequence was related to that for the known eukaryote sequences (Tab ...
... similarity with the E. coli enzyme has been difficult to establish. Alignment of the known eukaryotic sequences with the E. coli protein, using the Macaw computer program [22], suggested that a small region of the E. coli amino acid sequence was related to that for the known eukaryote sequences (Tab ...
as a PDF
... Abs390 nm/Abs275 nm /0.59. It was observed (data not shown) that the characteristic Fe /S charge transfer at 390 nm fades away after exposition of the protein to oxygen. The polypeptide chain contains 60 amino acid residues, eight of them are cysteinyl residues: Cys11, 14, 17, 21, 41, 44, 47 and 5 ...
... Abs390 nm/Abs275 nm /0.59. It was observed (data not shown) that the characteristic Fe /S charge transfer at 390 nm fades away after exposition of the protein to oxygen. The polypeptide chain contains 60 amino acid residues, eight of them are cysteinyl residues: Cys11, 14, 17, 21, 41, 44, 47 and 5 ...
R Is for Arginine Metabolism of Arginine Takes off Again, in New
... concentrations may be limiting for NOS in specific subcellular locales. Moreover, the presence of endogenous competitive inhibitors of NOS (discussed below) may raise the effective intracellular arginine concentration needed for full enzyme activity. In any event, the action of NOS on l-arginine yie ...
... concentrations may be limiting for NOS in specific subcellular locales. Moreover, the presence of endogenous competitive inhibitors of NOS (discussed below) may raise the effective intracellular arginine concentration needed for full enzyme activity. In any event, the action of NOS on l-arginine yie ...
R Is for Arginine
... concentrations may be limiting for NOS in specific subcellular locales. Moreover, the presence of endogenous competitive inhibitors of NOS (discussed below) may raise the effective intracellular arginine concentration needed for full enzyme activity. In any event, the action of NOS on l-arginine yie ...
... concentrations may be limiting for NOS in specific subcellular locales. Moreover, the presence of endogenous competitive inhibitors of NOS (discussed below) may raise the effective intracellular arginine concentration needed for full enzyme activity. In any event, the action of NOS on l-arginine yie ...
Enzymes and food flavor : a review
... The use of enzymes in flavor generation in food technology is reviewed. In the first part, important products derived from natural macromolecules present in foods such as fats, proteins, nucleic acids and flavorprecursors are discussed in terms of the enzymes involved in thereactions and therelation ...
... The use of enzymes in flavor generation in food technology is reviewed. In the first part, important products derived from natural macromolecules present in foods such as fats, proteins, nucleic acids and flavorprecursors are discussed in terms of the enzymes involved in thereactions and therelation ...
University of Groningen Molecular basis of two novel
... strain CBS-3 is a homotrimer, of which each subunit folds into two domains. The Nterminal domain contains a 10-stranded β-sheet, forming two nearly perpendicular layers, which are flanked by α-helices (Figure 3A). The C-terminal domain is composed of three amphiphilic α-helices, and is primarily inv ...
... strain CBS-3 is a homotrimer, of which each subunit folds into two domains. The Nterminal domain contains a 10-stranded β-sheet, forming two nearly perpendicular layers, which are flanked by α-helices (Figure 3A). The C-terminal domain is composed of three amphiphilic α-helices, and is primarily inv ...
Local protein synthesis in neuronal axons: why and
... neurites (which are likely to be axons) can pass through the silicone grease-culture dish interface under the Teflon divider into the “distal” compartments. With a complete seal, decent fluidic separation between compartments can be made, and axonal growth into the distal compartments is facilitated ...
... neurites (which are likely to be axons) can pass through the silicone grease-culture dish interface under the Teflon divider into the “distal” compartments. With a complete seal, decent fluidic separation between compartments can be made, and axonal growth into the distal compartments is facilitated ...
MCB 135K Discussion
... WIKIPEDIA DEFINITION: Carnitine transports long-chain acyl groups from fatty acids into the mitochondrial matrix so they can be oxidized for energy. Fatty acids must be activated before binding to the carnitine molecule to form acylcarnitine. The free fatty acid in the cytosol is attached with a th ...
... WIKIPEDIA DEFINITION: Carnitine transports long-chain acyl groups from fatty acids into the mitochondrial matrix so they can be oxidized for energy. Fatty acids must be activated before binding to the carnitine molecule to form acylcarnitine. The free fatty acid in the cytosol is attached with a th ...
MEDICAL BIOCHEMISTRY Problem Unit One 1999/2000 pH and
... behind a hydroxide ion. Since neither acetic acid or the amine proceed to essentially complete ionization upon dissolving in water, they are referred to as a weak acid and a weak base, respectively. In fact, water itself can ionize to some extent: H2O <=> H+ + OHIn pure water the concentration of H+ ...
... behind a hydroxide ion. Since neither acetic acid or the amine proceed to essentially complete ionization upon dissolving in water, they are referred to as a weak acid and a weak base, respectively. In fact, water itself can ionize to some extent: H2O <=> H+ + OHIn pure water the concentration of H+ ...
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... the flavonoid pigmentation pathways that exist in flowers (Elomaa and Holton, 1994; Forkmann and Martens, 2001). To create black flowers, for example, researchers tried to increase the concentrations of flavonoid pigments to very high levels. Few of these attempts gave any encouraging results, and m ...
... the flavonoid pigmentation pathways that exist in flowers (Elomaa and Holton, 1994; Forkmann and Martens, 2001). To create black flowers, for example, researchers tried to increase the concentrations of flavonoid pigments to very high levels. Few of these attempts gave any encouraging results, and m ...
FORMATTED - revised ENZYMology
... Enzymes are specific in their action. The specificity of enzyme results from their three dimensional structure and shape of the active site and requires the interaction between substrate and enzyme at least at three different points in the active site. The range of specificity varies between enzymes ...
... Enzymes are specific in their action. The specificity of enzyme results from their three dimensional structure and shape of the active site and requires the interaction between substrate and enzyme at least at three different points in the active site. The range of specificity varies between enzymes ...
Chapter8-Carbohydrates-2014
... Primates and fruit bats have lost the ability to make Vitamin C so it is an essential nutrient. Humans have also lost the ability to oxidise uric acid so some of the antioxidant function of Vitamin C may have been taken over by uric acid. The ancient DNA encoding L-glucuronolactone oxidase is still ...
... Primates and fruit bats have lost the ability to make Vitamin C so it is an essential nutrient. Humans have also lost the ability to oxidise uric acid so some of the antioxidant function of Vitamin C may have been taken over by uric acid. The ancient DNA encoding L-glucuronolactone oxidase is still ...
micro notes chpt. 8
... the products formed. In general, the substrate fits into the active site of the enzyme like a “lockand-key.” A cofactor or coenzyme might assist in the proper fit. Catalysis involves conformational changes in the enzyme, which then result in release of products. Enzymes may be synthetic (combine sub ...
... the products formed. In general, the substrate fits into the active site of the enzyme like a “lockand-key.” A cofactor or coenzyme might assist in the proper fit. Catalysis involves conformational changes in the enzyme, which then result in release of products. Enzymes may be synthetic (combine sub ...
SCit: web tools for protein side chain
... of the backbone has long been described, and its accurate analysis has brought significant progress in the field of side chain positioning. Usually, the dependence of the conformation of one side chain on that of the backbone is analysed as a function of the f and y angle values of that amino acid ( ...
... of the backbone has long been described, and its accurate analysis has brought significant progress in the field of side chain positioning. Usually, the dependence of the conformation of one side chain on that of the backbone is analysed as a function of the f and y angle values of that amino acid ( ...
chapt 6
... Muscle cells can survive brief periods of oxygen deprivation, but brain cells cannot. Lactic acid “burns” in muscles. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
... Muscle cells can survive brief periods of oxygen deprivation, but brain cells cannot. Lactic acid “burns” in muscles. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
The Distribution of apDiaminopimellc Acid among various Micro
... abnormal protein content, to make further chromatograms using a different amount of hydrolysate in order to obtain good definition. After the preliminary chromatograms, the remaining hydrolysate was electrodialysed to remove all basic and acidic substances. This was carried out after removal of humi ...
... abnormal protein content, to make further chromatograms using a different amount of hydrolysate in order to obtain good definition. After the preliminary chromatograms, the remaining hydrolysate was electrodialysed to remove all basic and acidic substances. This was carried out after removal of humi ...
Biosynthesis
Biosynthesis (also called biogenesis or anabolism) is a multi-step, enzyme-catalyzed process where substrates are converted into more complex products in living organisms. In biosynthesis, simple compounds are modified, converted into other compounds, or joined together to form macromolecules. This process often consists of metabolic pathways. Some of these biosynthetic pathways are located within a single cellular organelle, while others involve enzymes that are located within multiple cellular organelles. Examples of these biosynthetic pathways include the production of lipid membrane components and nucleotides.The prerequisite elements for biosynthesis include: precursor compounds, chemical energy (e.g. ATP), and catalytic enzymes which may require coenzymes (e.g.NADH, NADPH). These elements create monomers, the building blocks for macromolecules. Some important biological macromolecules include: proteins, which are composed of amino acid monomers joined via peptide bonds, and DNA molecules, which are composed of nucleotides joined via phosphodiester bonds.