LAB 8: ENZYMES AS DRUG TARGETS.
... Draw the graph showing lowering difference in activation energy for non-enzyme and enzyme-catalysed reactions ...
... Draw the graph showing lowering difference in activation energy for non-enzyme and enzyme-catalysed reactions ...
Enzymes - africangreyparrott.com
... C. Temp. and pH have no influence on the activity of this enzyme. D. This enzyme works best at a temp. above 50 C and a pH above ...
... C. Temp. and pH have no influence on the activity of this enzyme. D. This enzyme works best at a temp. above 50 C and a pH above ...
Questions for Respiration and Photoshyntesis
... 1. What are oxidation/reduction reactions? Chem. rxns that involve a partial or complete transfer of e- from one reactant to another 2. The ETC involves a series of redox reactions in which electrons pass from carrier to carrier down to oxygen the final electron acceptor. 3. What are the three main ...
... 1. What are oxidation/reduction reactions? Chem. rxns that involve a partial or complete transfer of e- from one reactant to another 2. The ETC involves a series of redox reactions in which electrons pass from carrier to carrier down to oxygen the final electron acceptor. 3. What are the three main ...
Chapter 9 Lecture Notes
... E. The “fall” of electrons during respiration is stepwise, via NAD+ and an electron transport chain Glucose and other fuels are broken down gradually in a series of steps, each catalyzed by a specific enzyme. At key steps, hydrogen atoms are stripped from glucose and passed first to a coenzyme, like ...
... E. The “fall” of electrons during respiration is stepwise, via NAD+ and an electron transport chain Glucose and other fuels are broken down gradually in a series of steps, each catalyzed by a specific enzyme. At key steps, hydrogen atoms are stripped from glucose and passed first to a coenzyme, like ...
Open file
... from the active site of the enzyme and the enzyme can be used again. By increasing the substrate concentration in the experiment, the enzyme is more ...
... from the active site of the enzyme and the enzyme can be used again. By increasing the substrate concentration in the experiment, the enzyme is more ...
Biology-1 Exam Two You can write on this exam. Please put a W at
... 19. Which of the following statements about glycolysis false? a. Glycolysis has steps involving oxidation-reduction reactions. b. The enzymes of glycolysis are located in the cytoplasm of the cell. c. Glycolysis can operate in the complete absence of O2. d. The end products of glycolysis are CO2 and ...
... 19. Which of the following statements about glycolysis false? a. Glycolysis has steps involving oxidation-reduction reactions. b. The enzymes of glycolysis are located in the cytoplasm of the cell. c. Glycolysis can operate in the complete absence of O2. d. The end products of glycolysis are CO2 and ...
Respiration and Fermentation
... 12. Cyanide blocks the respiratory electron transport chain. As a result a. Krebs Cycle speeds up. b. electrons and hydrogens cannot flow from NADH to oxygen. c. three ATP are produced for every pair of electrons. d. production of water increases. e. glycolysis is inhibited. 13. For a living animal, ...
... 12. Cyanide blocks the respiratory electron transport chain. As a result a. Krebs Cycle speeds up. b. electrons and hydrogens cannot flow from NADH to oxygen. c. three ATP are produced for every pair of electrons. d. production of water increases. e. glycolysis is inhibited. 13. For a living animal, ...
An overview of Metabolism - Harford Community College
... 2. oxidative phosphorylation occurs during the electron transport chain formation of a proton (H+) gradient across the inner mitochondrial membrane provides potential energy to make ATP ...
... 2. oxidative phosphorylation occurs during the electron transport chain formation of a proton (H+) gradient across the inner mitochondrial membrane provides potential energy to make ATP ...
Mitochondrial Lab - University of Colorado Denver
... Competitive Inhibitors resemble the normal substrate -but cannot be turned into product—so they tie up enzymes by binding to their active site. Malonate is a molecule that looks like succinate, but it cannot be made into fumaric acid (product) so malonate is a competitive inhibitor. Malonate is in ...
... Competitive Inhibitors resemble the normal substrate -but cannot be turned into product—so they tie up enzymes by binding to their active site. Malonate is a molecule that looks like succinate, but it cannot be made into fumaric acid (product) so malonate is a competitive inhibitor. Malonate is in ...
Carbohydrate Catabolism Cellular Respiration
... Oxidation and Reduction Reactions • Electron transfer from an electron donor to an electron acceptor – simultaneously ...
... Oxidation and Reduction Reactions • Electron transfer from an electron donor to an electron acceptor – simultaneously ...
ATP - Luzzago
... ATP synthase is the same in all living organisms. • It is a molecular motor with two parts: – F0 unit—the transmembrane H+ channel – F1 unit—projects into mitochondrial matrix; rotates to expose active sites for ATP synthesis ...
... ATP synthase is the same in all living organisms. • It is a molecular motor with two parts: – F0 unit—the transmembrane H+ channel – F1 unit—projects into mitochondrial matrix; rotates to expose active sites for ATP synthesis ...
unit 3 – cellular energy processes
... 16. Explain why oxygen consumption can be used to measure the rate of respiration. 17. Distinguish between autotrophic and heterotrophic nutrition. 18. Distinguish between photosynthetic and chemosynthetic autotrophs. 19. Describe the location and structure of the chloroplasts. 20. Relate chloroplas ...
... 16. Explain why oxygen consumption can be used to measure the rate of respiration. 17. Distinguish between autotrophic and heterotrophic nutrition. 18. Distinguish between photosynthetic and chemosynthetic autotrophs. 19. Describe the location and structure of the chloroplasts. 20. Relate chloroplas ...
Nerve activates contraction
... Perfect enzymes are rare and catalyze very important reactions in a cell such this key step in glycolysis – the main energy pathway in the cell. Chemists study for perfect enzymes to learn how to make the most efficient catalysts. ...
... Perfect enzymes are rare and catalyze very important reactions in a cell such this key step in glycolysis – the main energy pathway in the cell. Chemists study for perfect enzymes to learn how to make the most efficient catalysts. ...
Cellular Respiration
... A) gain of electrons . . . loss of electrons B) loss of electrons . . . gain of electrons C) loss of oxygen . . . gain of oxygen D) gain of oxygen . . . loss of oxygen E) gain of protons . . . loss of protons ...
... A) gain of electrons . . . loss of electrons B) loss of electrons . . . gain of electrons C) loss of oxygen . . . gain of oxygen D) gain of oxygen . . . loss of oxygen E) gain of protons . . . loss of protons ...
acetyl-CoA - Winona State University
... Remember that a negative Delta G can help drive a reaction with a positive value if there is “No Membrane In Between”. This is why Delta G from the reactions in the mitochondria cannot help to drive the reactions of glycolysis in the cytosol. Although molecules such as pyruvate can “carry” the ener ...
... Remember that a negative Delta G can help drive a reaction with a positive value if there is “No Membrane In Between”. This is why Delta G from the reactions in the mitochondria cannot help to drive the reactions of glycolysis in the cytosol. Although molecules such as pyruvate can “carry” the ener ...
LEC 7 respiration
... with no release of CO2 • Lactic acid fermentation by some fungi and bacteria is used to make cheese and yogurt • Human muscle cells use lactic acid fermentation to generate ATP when O2 is scarce ...
... with no release of CO2 • Lactic acid fermentation by some fungi and bacteria is used to make cheese and yogurt • Human muscle cells use lactic acid fermentation to generate ATP when O2 is scarce ...
Homeostasis Invertase
... metabolic reactions in order to maintain homeostasis. You can think of this regulation at the level of the body, at the level of the tissue (e.g. heart), at the level of the cell (e.g heart cell) or at the level of the protein (e.g. enzyme). In fact, there is coordination across these levels to main ...
... metabolic reactions in order to maintain homeostasis. You can think of this regulation at the level of the body, at the level of the tissue (e.g. heart), at the level of the cell (e.g heart cell) or at the level of the protein (e.g. enzyme). In fact, there is coordination across these levels to main ...
BIS103-002 (Spring 2008) - UC Davis Plant Sciences
... proteins are often deficient in certain essential amino acids, depending on the source of the plant diet (crop species; tissues, seeds or fruits consumed). d) The aromatic amino acids tryptophan and phenylalanine are essential to humans; however, tyrosine is not. What is the reason? Be specific. (2 ...
... proteins are often deficient in certain essential amino acids, depending on the source of the plant diet (crop species; tissues, seeds or fruits consumed). d) The aromatic amino acids tryptophan and phenylalanine are essential to humans; however, tyrosine is not. What is the reason? Be specific. (2 ...
File
... 1. In general terms, distinguish between fermentation and cellular respiration. 2. Write the summary equation for cellular respiration. Write the specific chemical equation for the degradation of glucose. 3. Define oxidation and reduction. 4. Explain in general terms how redox reactions are involved ...
... 1. In general terms, distinguish between fermentation and cellular respiration. 2. Write the summary equation for cellular respiration. Write the specific chemical equation for the degradation of glucose. 3. Define oxidation and reduction. 4. Explain in general terms how redox reactions are involved ...
chapter 9
... 1. In general terms, distinguish between fermentation and cellular respiration. 2. Write the summary equation for cellular respiration. Write the specific chemical equation for the degradation of glucose. 3. Define oxidation and reduction. 4. Explain in general terms how redox reactions are involved ...
... 1. In general terms, distinguish between fermentation and cellular respiration. 2. Write the summary equation for cellular respiration. Write the specific chemical equation for the degradation of glucose. 3. Define oxidation and reduction. 4. Explain in general terms how redox reactions are involved ...
Chapter Nine
... 1. In general terms, distinguish between fermentation and cellular respiration. 2. Write the summary equation for cellular respiration. Write the specific chemical equation for the degradation of glucose. 3. Define oxidation and reduction. 4. Explain in general terms how redox reactions are involved ...
... 1. In general terms, distinguish between fermentation and cellular respiration. 2. Write the summary equation for cellular respiration. Write the specific chemical equation for the degradation of glucose. 3. Define oxidation and reduction. 4. Explain in general terms how redox reactions are involved ...
CHAPTER 9
... 1. In general terms, distinguish between fermentation and cellular respiration. 2. Write the summary equation for cellular respiration. Write the specific chemical equation for the degradation of glucose. 3. Define oxidation and reduction. 4. Explain in general terms how redox reactions are involved ...
... 1. In general terms, distinguish between fermentation and cellular respiration. 2. Write the summary equation for cellular respiration. Write the specific chemical equation for the degradation of glucose. 3. Define oxidation and reduction. 4. Explain in general terms how redox reactions are involved ...
Midterm #2 - UC Davis Plant Sciences
... c) If you ingest [14C]-labeled compounds that cannot be converted by humans into glucose on a per net basis, you will find that radioactively labeled carbon atoms will eventually be incorporated into glucose and glycogen. How do you explain this paradox? (2 pts) Once [14C]-labeled acetyl-CoA is inco ...
... c) If you ingest [14C]-labeled compounds that cannot be converted by humans into glucose on a per net basis, you will find that radioactively labeled carbon atoms will eventually be incorporated into glucose and glycogen. How do you explain this paradox? (2 pts) Once [14C]-labeled acetyl-CoA is inco ...
1 All cells can harvest energy from organic molecules. To do this
... In this module, we will look at several ways cells can catabolize glucose and use the energy that is released to make ATP. ...
... In this module, we will look at several ways cells can catabolize glucose and use the energy that is released to make ATP. ...
Nicotinamide adenine dinucleotide
Nicotinamide adenine dinucleotide (NAD) is a coenzyme found in all living cells. The compound is a dinucleotide, because it consists of two nucleotides joined through their phosphate groups. One nucleotide contains an adenine base and the other nicotinamide. Nicotinamide adenine dinucleotide exists in two forms, an oxidized and reduced form abbreviated as NAD+ and NADH respectively.In metabolism, nicotinamide adenine dinucleotide is involved in redox reactions, carrying electrons from one reaction to another. The coenzyme is, therefore, found in two forms in cells: NAD+ is an oxidizing agent – it accepts electrons from other molecules and becomes reduced. This reaction forms NADH, which can then be used as a reducing agent to donate electrons. These electron transfer reactions are the main function of NAD. However, it is also used in other cellular processes, the most notable one being a substrate of enzymes that add or remove chemical groups from proteins, in posttranslational modifications. Because of the importance of these functions, the enzymes involved in NAD metabolism are targets for drug discovery.In organisms, NAD can be synthesized from simple building-blocks (de novo) from the amino acids tryptophan or aspartic acid. In an alternative fashion, more complex components of the coenzymes are taken up from food as the vitamin called niacin. Similar compounds are released by reactions that break down the structure of NAD. These preformed components then pass through a salvage pathway that recycles them back into the active form. Some NAD is also converted into nicotinamide adenine dinucleotide phosphate (NADP); the chemistry of this related coenzyme is similar to that of NAD, but it has different roles in metabolism.Although NAD+ is written with a superscript plus sign because of the formal charge on a particular nitrogen atom, at physiological pH for the most part it is actually a singly charged anion (charge of minus 1), while NADH is a doubly charged anion.