Atomic Structure (Bohr or Planetary Model)
... – each enzyme can only act upon one substrate • Enzymes are unchanged by reactions that they catalyze and are able to repeat the process many times over • Enzymes increase the rate of a chemical reaction by lowering the activation energy of the reaction • Enzymes are frequently named for the type of ...
... – each enzyme can only act upon one substrate • Enzymes are unchanged by reactions that they catalyze and are able to repeat the process many times over • Enzymes increase the rate of a chemical reaction by lowering the activation energy of the reaction • Enzymes are frequently named for the type of ...
Glycolysis Puzzle: Concept Map of "Splitting of Glucose"
... Pyruvate has two biochemical fates, depending upon whether or not oxygen is present. In the absence of oxygen, anaerobic respiration (fermentation) occurs. In animal cells ________________________ is reduced to lactic acid (lactate) By the oxidation of the coenzyme __________________________ In yeas ...
... Pyruvate has two biochemical fates, depending upon whether or not oxygen is present. In the absence of oxygen, anaerobic respiration (fermentation) occurs. In animal cells ________________________ is reduced to lactic acid (lactate) By the oxidation of the coenzyme __________________________ In yeas ...
1 Biology 205 Exam 1 4/21/16 1. Geography quiz
... go through its lytic cycle. Why would E. coli produce a protease that allows the virus to go lytic which results in E. coli’s death? Explain your answer. Be specific. (9 pts) 6. Kinases and phosphatases function as switches that can activate or inactivate enzymes. Explain how they work and how they ...
... go through its lytic cycle. Why would E. coli produce a protease that allows the virus to go lytic which results in E. coli’s death? Explain your answer. Be specific. (9 pts) 6. Kinases and phosphatases function as switches that can activate or inactivate enzymes. Explain how they work and how they ...
Chapter 3 Biological Molecules
... An amino group reacts with a carboxyl group, and water is lost ...
... An amino group reacts with a carboxyl group, and water is lost ...
Peptides, Proteins, and Enzymes
... 1. Describe the general bonding pattern of α-amino acids and understand how amino acids are classified by the polarity and charge of their side-chains. 2. Given the table of twenty common amino acids (Table 1.1), determine the total charge of the dominant form of an amino acid (at physiological pH ...
... 1. Describe the general bonding pattern of α-amino acids and understand how amino acids are classified by the polarity and charge of their side-chains. 2. Given the table of twenty common amino acids (Table 1.1), determine the total charge of the dominant form of an amino acid (at physiological pH ...
Hemoglobin binding curve: causes of shift to right
... "Dracula wants to Suck a Co-ed's blood [think heme] with his Glystening teeth!": Succinyl CoA and Glycine are precursor amino acids to pyrrole rings, which is the basic unit of porphyrins and heme. ...
... "Dracula wants to Suck a Co-ed's blood [think heme] with his Glystening teeth!": Succinyl CoA and Glycine are precursor amino acids to pyrrole rings, which is the basic unit of porphyrins and heme. ...
biological_molecules_facts
... coiled forming a compact molecule. It is used for storage. Starch is tested with iodine solution, giving a blue-black colour change. Glycogen is a polysaccharide formed in animal cells. It is very branched. Cellulose is a polysaccharide formed from -glucose molecules. It has straight chains that ar ...
... coiled forming a compact molecule. It is used for storage. Starch is tested with iodine solution, giving a blue-black colour change. Glycogen is a polysaccharide formed in animal cells. It is very branched. Cellulose is a polysaccharide formed from -glucose molecules. It has straight chains that ar ...
The Aerobic Fate of Pyruvate
... dioxide, but there is chemical logic to the cycle. In order to directly oxidize acetate into two molecules of CO2 a C—C bond must be broken. Under the mild conditions found in cells, there is insufficient energy to break the bond. Biological systems often break C—C bonds between carbon atoms α and β ...
... dioxide, but there is chemical logic to the cycle. In order to directly oxidize acetate into two molecules of CO2 a C—C bond must be broken. Under the mild conditions found in cells, there is insufficient energy to break the bond. Biological systems often break C—C bonds between carbon atoms α and β ...
Amino Acids and the Primary Structure of Proteins
... Primary Structure of Proteins Important biological functions of proteins 1. Enzymes, the biochemical catalysts 2. Storage and transport of biochemical molecules 3. Physical cell support and shape (tubulin, actin, ...
... Primary Structure of Proteins Important biological functions of proteins 1. Enzymes, the biochemical catalysts 2. Storage and transport of biochemical molecules 3. Physical cell support and shape (tubulin, actin, ...
Exam 2 question possibility for 2008
... 100%. Also assume acetyl-coA can be hydrolyzed in E. coli to acetate and coA with no energetic consequences. The drug is present for questions 1A and 1B. The pathway of fatty acid catabolism can be found on the last pages. 1A. In the presence of oxygen, and in the long run, the number of moles of AT ...
... 100%. Also assume acetyl-coA can be hydrolyzed in E. coli to acetate and coA with no energetic consequences. The drug is present for questions 1A and 1B. The pathway of fatty acid catabolism can be found on the last pages. 1A. In the presence of oxygen, and in the long run, the number of moles of AT ...
008 Chapter 08 Metabolism: Energy Enzymes and Regulation 1
... 26. Which of the following can be used as electron acceptors during anaerobic respiration? A. nitrate B. sulfate C. carbon dioxide D. all of the choices 27. Fatty acids are metabolized by the __________ pathway. A. alpha-oxidation B. beta-oxidation C. gamma-oxidation D. delta-oxidation 28. During b ...
... 26. Which of the following can be used as electron acceptors during anaerobic respiration? A. nitrate B. sulfate C. carbon dioxide D. all of the choices 27. Fatty acids are metabolized by the __________ pathway. A. alpha-oxidation B. beta-oxidation C. gamma-oxidation D. delta-oxidation 28. During b ...
Enzymes Lab
... has one of the highest turnover rates for all enzymes; one molecule of catalase can convert 6 million molecules of hydrogen peroxide to water and oxygen each minute. Catalase is a tetramer of 4 polypeptide chains which are at least 500 amino acids in length. Within this tetramer there are 4 porphyri ...
... has one of the highest turnover rates for all enzymes; one molecule of catalase can convert 6 million molecules of hydrogen peroxide to water and oxygen each minute. Catalase is a tetramer of 4 polypeptide chains which are at least 500 amino acids in length. Within this tetramer there are 4 porphyri ...
Biology 1406 Quiz 2 Multiple-Choice Questions 1) When biologists
... D) removal of the amino acids in active sites of your enzymes E) binding of your enzymes to inappropriate substrates 37) The mechanism in which the end product of a metabolic pathway inhibits an earlier step in the pathway is most precisely described as A) metabolic inhibition. B) feedback inhibitio ...
... D) removal of the amino acids in active sites of your enzymes E) binding of your enzymes to inappropriate substrates 37) The mechanism in which the end product of a metabolic pathway inhibits an earlier step in the pathway is most precisely described as A) metabolic inhibition. B) feedback inhibitio ...
Lab 3 minipreps, RE, gel
... There are a number of techniques for isolating plasmid DNA. Most labs have adopted one of the spin column kits on the market. These are fast and reliable. For DNA purification, we will use anion-exchange resin/ spin column technique available through Qiagen (Santa Clarita, CA). It is based on the al ...
... There are a number of techniques for isolating plasmid DNA. Most labs have adopted one of the spin column kits on the market. These are fast and reliable. For DNA purification, we will use anion-exchange resin/ spin column technique available through Qiagen (Santa Clarita, CA). It is based on the al ...
Energy
... Enzymes catalyze reactions by lowering EA barrier Enzymes do not affect change in free energy (∆G); instead, they hasten reactions that would occur eventually ...
... Enzymes catalyze reactions by lowering EA barrier Enzymes do not affect change in free energy (∆G); instead, they hasten reactions that would occur eventually ...
Comparison of Trypsin Immobilization Techniques With or Without a
... proteomics, fast enzymatic digestions and efficient analysis techniques like capillary electrophoresis (CE), liquid chromatography (HPLC) and mass spectrometry (MS) are essential. Immobilized enzymes, defined as enzymes with restricted mobility, offer technical and economical advantages over soluble ...
... proteomics, fast enzymatic digestions and efficient analysis techniques like capillary electrophoresis (CE), liquid chromatography (HPLC) and mass spectrometry (MS) are essential. Immobilized enzymes, defined as enzymes with restricted mobility, offer technical and economical advantages over soluble ...
Lecture DONE exam 1A MP
... 27. Hydrogen bonds between amino acid side chains are important in stabilizing _______ while hydrogen bonds involving peptide bonds are important in ______. A) tertiary structure, primary structure B) secondary structure, tertiary structure C) receptor proteins, structural proteins D) primary struct ...
... 27. Hydrogen bonds between amino acid side chains are important in stabilizing _______ while hydrogen bonds involving peptide bonds are important in ______. A) tertiary structure, primary structure B) secondary structure, tertiary structure C) receptor proteins, structural proteins D) primary struct ...
Examination I PHRM 836 – Biochemistry for Pharmaceutical
... screening for a molecule that has a higher KI value for NOSII than for either NOSI or NOSIII making the inhibitor more hydrophobic looking at the crystal structures of the three isoforms to search for differences in amino acid types in the active site of the NOS isoforms Achieving selectivity among ...
... screening for a molecule that has a higher KI value for NOSII than for either NOSI or NOSIII making the inhibitor more hydrophobic looking at the crystal structures of the three isoforms to search for differences in amino acid types in the active site of the NOS isoforms Achieving selectivity among ...
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.