Multiple Choice Questions
... sources have impacted the field of structural biology. 1. High intensity light sources for use of small crystals 2. High intensity light sources to do time-resolved crystallography 3. Tunable wavelength sources to accomplish MAD phasing ...
... sources have impacted the field of structural biology. 1. High intensity light sources for use of small crystals 2. High intensity light sources to do time-resolved crystallography 3. Tunable wavelength sources to accomplish MAD phasing ...
Chapter 2
... polarity of water allows many substances to dissolve Ionic compounds and polar molecules dissolve the best Nonpolar molecules cannot dissolve in water Important because the shape and function of cell membranes depends on the interaction between polar and nonpolar molecules ...
... polarity of water allows many substances to dissolve Ionic compounds and polar molecules dissolve the best Nonpolar molecules cannot dissolve in water Important because the shape and function of cell membranes depends on the interaction between polar and nonpolar molecules ...
Production of Bacteriolytic Enzymes and Degradation
... enzymes was consistent with the possession of an endopeptidase or an N-acetylmuramyl-Lalanine amidase (Ghuysen, 1968), although the non-linear kinetics and the release of low levels of reducing groups suggested the presence of additional activities. Phialophora radicicola and Chaetomium sp. also pro ...
... enzymes was consistent with the possession of an endopeptidase or an N-acetylmuramyl-Lalanine amidase (Ghuysen, 1968), although the non-linear kinetics and the release of low levels of reducing groups suggested the presence of additional activities. Phialophora radicicola and Chaetomium sp. also pro ...
Publication JournalArticle (Originalarbeit in einer wissenschaftlichen
... Gamma-aminobutyric acid aminotransferase (GABA-AT) is a pyridoxal 5'-phosphate-dependent enzyme responsible for the degradation of the inhibitory neurotransmitter GABA. GABA-AT is a validated target for antiepilepsy drugs because its selective inhibition raises GABA concentrations in brain. The anti ...
... Gamma-aminobutyric acid aminotransferase (GABA-AT) is a pyridoxal 5'-phosphate-dependent enzyme responsible for the degradation of the inhibitory neurotransmitter GABA. GABA-AT is a validated target for antiepilepsy drugs because its selective inhibition raises GABA concentrations in brain. The anti ...
Proteins - Westgate Mennonite Collegiate
... E. proteins have 4 levels of organization or structure 1. primary structure (1) of a protein is the sequence of amino acids in the peptide chain ...
... E. proteins have 4 levels of organization or structure 1. primary structure (1) of a protein is the sequence of amino acids in the peptide chain ...
1 - Rosshall Academy
... State that photosynthesis is the process by which plants make carbohydrates from carbon dioxide and water using light energy in the presence of chlorophyll; oxygen is released in the process. ...
... State that photosynthesis is the process by which plants make carbohydrates from carbon dioxide and water using light energy in the presence of chlorophyll; oxygen is released in the process. ...
Biology_1_&_2_files/2 Biochemistry ACADEMIC
... Even if enough energy is available, the product still may not form. When the reactant particles, the correct atoms must ...
... Even if enough energy is available, the product still may not form. When the reactant particles, the correct atoms must ...
Final Examination
... is one metabolite that does not have its name as part of the name of any of the citric acid cycle enzymes. Instead there is one enzyme with a name that does not include the name of any of the metabolites in the citric acid cycle. What is the name of this enzyme? What reaction does it catalyze (use m ...
... is one metabolite that does not have its name as part of the name of any of the citric acid cycle enzymes. Instead there is one enzyme with a name that does not include the name of any of the metabolites in the citric acid cycle. What is the name of this enzyme? What reaction does it catalyze (use m ...
Single-choice questions: (34 points) l. Enzymes are biological
... They consist of separate polypeptide chains (subunits). ...
... They consist of separate polypeptide chains (subunits). ...
Lipids - AHSbogna
... four folded polypeptide subunits that assemble themselves into the quaternary structure shown here. In these two graphic representations, each type of subunit is a different color. The heme groups contain iron and are the oxygen-carrying sites. ...
... four folded polypeptide subunits that assemble themselves into the quaternary structure shown here. In these two graphic representations, each type of subunit is a different color. The heme groups contain iron and are the oxygen-carrying sites. ...
A1986A777600001
... of pyridoxal and the amino acid. The powerful electron-withdrawing ability of the N-protonated pyridine ring was also needed for catalysis. Taking some clues from the newly published Chemistry of the Metal 2Chelate Compounds, by Martell and Calvin, we quickly deduced the common mechanism for all of ...
... of pyridoxal and the amino acid. The powerful electron-withdrawing ability of the N-protonated pyridine ring was also needed for catalysis. Taking some clues from the newly published Chemistry of the Metal 2Chelate Compounds, by Martell and Calvin, we quickly deduced the common mechanism for all of ...
Unit 2 Study Objectivies
... State the first and second Laws of Thermodynamics. Draw a molecule of ATP and identify its chemical class. Explain the regeneration of ATP from ADP. Describe the function of ATP in the cell. Explain why chemical disequilibrium is essential for life. Describe the energy profile of a chemical reaction ...
... State the first and second Laws of Thermodynamics. Draw a molecule of ATP and identify its chemical class. Explain the regeneration of ATP from ADP. Describe the function of ATP in the cell. Explain why chemical disequilibrium is essential for life. Describe the energy profile of a chemical reaction ...
Medical Microbiology Lecture 5 Third class/ Dentistry College The
... The three-carbon stage of glycolysis begins when the enzyme fructose 1,6bisphosphate aldolase catalyzes the cleavage of fructose 1,6-bisphosphate into two halves, each with a phosphate group. One of the products, glyceraldehyde 3-phosphate, is converted directly to pyruvate in a five-step process. a ...
... The three-carbon stage of glycolysis begins when the enzyme fructose 1,6bisphosphate aldolase catalyzes the cleavage of fructose 1,6-bisphosphate into two halves, each with a phosphate group. One of the products, glyceraldehyde 3-phosphate, is converted directly to pyruvate in a five-step process. a ...
101 -- 2006
... a) They combine molecules into more complex and energy rich molecules. b) They are usually coupled with anabolic pathways to which they supply energy in the form of ATP. c) They involve endergonic reactions that break complex molecules into simpler ones. d) They are spontaneous and do not need enzym ...
... a) They combine molecules into more complex and energy rich molecules. b) They are usually coupled with anabolic pathways to which they supply energy in the form of ATP. c) They involve endergonic reactions that break complex molecules into simpler ones. d) They are spontaneous and do not need enzym ...
BS 11 First Mid-Term Answer Key Spring 1998
... Circle the residue(s) which is likely to be phosphorylated. Ans: The E. Of these amino acids, only the Glu is a good nucleophile. (2 pt) L) Mutation of S195, H57 and D102 of chymotrypsin to alanine residues yields an enzyme that enhances proteolysis rates by ~5x104 over the uncatalyzed reaction. The ...
... Circle the residue(s) which is likely to be phosphorylated. Ans: The E. Of these amino acids, only the Glu is a good nucleophile. (2 pt) L) Mutation of S195, H57 and D102 of chymotrypsin to alanine residues yields an enzyme that enhances proteolysis rates by ~5x104 over the uncatalyzed reaction. The ...
The Citric acid cycle - University of Houston
... Coenzyme A and Ochoa and Lynen showed that acetylCoA was intermediate from pyruvate to citrate. ...
... Coenzyme A and Ochoa and Lynen showed that acetylCoA was intermediate from pyruvate to citrate. ...
A1981MS54300001
... carbon out of amino acid metabolism and into the cinnamic acid polymers and other derivatives that form so much of the plant biomass. It seemed in the early-1960s that a knowledge of the behaviour of this enzyme would provide a starting point for understanding the rest of cinnamate-based metabolism. ...
... carbon out of amino acid metabolism and into the cinnamic acid polymers and other derivatives that form so much of the plant biomass. It seemed in the early-1960s that a knowledge of the behaviour of this enzyme would provide a starting point for understanding the rest of cinnamate-based metabolism. ...
Fermentation and Cellular Respiration 1. Define: Glycolysis
... Fermentation – Fermentation is the anaerobic decomposition of organic compounds (especially carbohydrates) that involves an organic compound (usually) as the final electron acceptor. For those examples used in class, pyruvic acid serves as the final electron acceptor, but some organisms use other co ...
... Fermentation – Fermentation is the anaerobic decomposition of organic compounds (especially carbohydrates) that involves an organic compound (usually) as the final electron acceptor. For those examples used in class, pyruvic acid serves as the final electron acceptor, but some organisms use other co ...
BIOL 202
... Ð Ð globular proteins Ð Ð specific for substrate (reactant) and product Ð Ð pH and temperature sensitive and specific (affects ...
... Ð Ð globular proteins Ð Ð specific for substrate (reactant) and product Ð Ð pH and temperature sensitive and specific (affects ...
Practice Exam 2
... ____________________ molecules of ATP being used to "prime" the beginning portion of the pathway. Fructose 1,6-bisphosphate is split into ____________________ carbon units. Each of these units reacts in the same way and ____________________ NADH are produced in total. ATP production involves a total ...
... ____________________ molecules of ATP being used to "prime" the beginning portion of the pathway. Fructose 1,6-bisphosphate is split into ____________________ carbon units. Each of these units reacts in the same way and ____________________ NADH are produced in total. ATP production involves a total ...
BI1
... a variety of different ways to include converse and counterpoints. Thus, except where terms are specifically requested, all correct responses even if expressed using different words are acceptable provided the points are explicit, unambiguous and made in the correct context. ...
... a variety of different ways to include converse and counterpoints. Thus, except where terms are specifically requested, all correct responses even if expressed using different words are acceptable provided the points are explicit, unambiguous and made in the correct context. ...
Enzyme
Enzymes /ˈɛnzaɪmz/ are macromolecular biological catalysts. Enzymes accelerate, or catalyze, chemical reactions. The molecules at the beginning of the process are called substrates and the enzyme converts these into different molecules, called products. Almost all metabolic processes in the cell need enzymes in order to occur at rates fast enough to sustain life. The set of enzymes made in a cell determines which metabolic pathways occur in that cell. The study of enzymes is called enzymology.Enzymes are known to catalyze more than 5,000 biochemical reaction types. Most enzymes are proteins, although a few are catalytic RNA molecules. Enzymes' specificity comes from their unique three-dimensional structures.Like all catalysts, enzymes increase the rate of a reaction by lowering its activation energy. Some enzymes can make their conversion of substrate to product occur many millions of times faster. An extreme example is orotidine 5'-phosphate decarboxylase, which allows a reaction that would otherwise take millions of years to occur in milliseconds. Chemically, enzymes are like any catalyst and are not consumed in chemical reactions, nor do they alter the equilibrium of a reaction. Enzymes differ from most other catalysts by being much more specific. Enzyme activity can be affected by other molecules: inhibitors are molecules that decrease enzyme activity, and activators are molecules that increase activity. Many drugs and poisons are enzyme inhibitors. An enzyme's activity decreases markedly outside its optimal temperature and pH.Some enzymes are used commercially, for example, in the synthesis of antibiotics. Some household products use enzymes to speed up chemical reactions: enzymes in biological washing powders break down protein, starch or fat stains on clothes, and enzymes in meat tenderizer break down proteins into smaller molecules, making the meat easier to chew.