SMicroChapter5
... 5. Precursor metabolites, energy from ATP, and enzymes used in anabolic reactions 6. Enzymes plus ATP form macromolecules 7. Cells grow by assembling macromolecules into cellular structures 8. Cells reproduce once they have doubled in size Basic Chemical Reactions Underlying Metabolism Catabolism a ...
... 5. Precursor metabolites, energy from ATP, and enzymes used in anabolic reactions 6. Enzymes plus ATP form macromolecules 7. Cells grow by assembling macromolecules into cellular structures 8. Cells reproduce once they have doubled in size Basic Chemical Reactions Underlying Metabolism Catabolism a ...
lec4.Respiratory chain.mac2010-09
... In addition, the matrix contains NAD+ and FAD (the oxidized forms of the two coenzymes that are required as hydrogen acceptors) and ADP and Pi, which are used to produce ATP. [Note: The matrix also contains mitochondrial RNA and DNA (mtRNA and mtDNA) and mitochondrial ribosomes.] ...
... In addition, the matrix contains NAD+ and FAD (the oxidized forms of the two coenzymes that are required as hydrogen acceptors) and ADP and Pi, which are used to produce ATP. [Note: The matrix also contains mitochondrial RNA and DNA (mtRNA and mtDNA) and mitochondrial ribosomes.] ...
Micro 071023
... 3 or 4 protons flowing through turns c proteins enough to change conformation of b protein 1 ATP ...
... 3 or 4 protons flowing through turns c proteins enough to change conformation of b protein 1 ATP ...
Electron Transport Chain and Oxidative phosphorylation So far we
... The mitochondrial ribosomes similar to that of bacteria. ...
... The mitochondrial ribosomes similar to that of bacteria. ...
Microbial Metabolism
... electrons are higher (more negative) on the tower • To determine which direction the reactions go, see which is “higher” on the electron tower • Note the position of important electron carriers (NAD, FAD, cytochrome a) and external electron donors/acceptors (H2, organic compounds, O2) ...
... electrons are higher (more negative) on the tower • To determine which direction the reactions go, see which is “higher” on the electron tower • Note the position of important electron carriers (NAD, FAD, cytochrome a) and external electron donors/acceptors (H2, organic compounds, O2) ...
Cellular Respiration Scrambled Steps
... Two things can happen: If oxygen is present, pyruvic acid enters the mitochondria to enter the Kreb’s Cycle. As H+ ions pass back across the mitochondrial membrane through ATP Synthase, molecules of ATP are made. From the Kreb’s cycle, NADH and FADHS enter the electron transport chain. The products ...
... Two things can happen: If oxygen is present, pyruvic acid enters the mitochondria to enter the Kreb’s Cycle. As H+ ions pass back across the mitochondrial membrane through ATP Synthase, molecules of ATP are made. From the Kreb’s cycle, NADH and FADHS enter the electron transport chain. The products ...
Chapter 9: Cellular Respiration
... ATP can be used directly to ___________________________ High energy electron carriers move into the _______________ _____________________ ...
... ATP can be used directly to ___________________________ High energy electron carriers move into the _______________ _____________________ ...
Document
... 3. Cyanide binds to cytochrome oxidase (complex IV) abolishing electron transfer to oxygen. It does not directly affect the other respiratory complexes, including complex I (i.e. the complex that accepts electrons from NADH and pumps 4 H+ across the membrane). And yet, cyanide fairly rapidly shuts d ...
... 3. Cyanide binds to cytochrome oxidase (complex IV) abolishing electron transfer to oxygen. It does not directly affect the other respiratory complexes, including complex I (i.e. the complex that accepts electrons from NADH and pumps 4 H+ across the membrane). And yet, cyanide fairly rapidly shuts d ...
Exam 3
... 16. Where does Krebs cycle occur? A. in the mitochondrial matrix B. in the cytoplasm C. in the chloroplast D. in the inner membrane of the mitochondria 17. Which 2-carbon molecule is produced by the preparatory steps/conversions? A. B. C. D. ...
... 16. Where does Krebs cycle occur? A. in the mitochondrial matrix B. in the cytoplasm C. in the chloroplast D. in the inner membrane of the mitochondria 17. Which 2-carbon molecule is produced by the preparatory steps/conversions? A. B. C. D. ...
Cellular Respiration
... NADH donates E to chain, protein pumps H+ out producing concentration gradient, H+ diffuses back in giving off energy to add P to ADP, O2, H+ and E to make water ...
... NADH donates E to chain, protein pumps H+ out producing concentration gradient, H+ diffuses back in giving off energy to add P to ADP, O2, H+ and E to make water ...
Cellular respiration is the of food
... electrons to the electron transport chain. The electron transport chain generates a ________________ gradient of hydrogen ions. The electrons are accepted by, ___________________, the final electron acceptor, which then picks up hydrogens and becomes _____________. The hydrogen ions diffuse through ...
... electrons to the electron transport chain. The electron transport chain generates a ________________ gradient of hydrogen ions. The electrons are accepted by, ___________________, the final electron acceptor, which then picks up hydrogens and becomes _____________. The hydrogen ions diffuse through ...
Electron Transport and oxidative phosphorylation (ATP Synthesis)
... Accepts e- from coenzyme Q and transfers e- to cytochrome c coupled with the transfer of protons from the matrix to the intermembrane space ...
... Accepts e- from coenzyme Q and transfers e- to cytochrome c coupled with the transfer of protons from the matrix to the intermembrane space ...
Electron Transport Chain (1)
... Every molecule of glucose, potentially we make about 38 ATP. Without oxygen, you can’t do the link stage, kreb cycle, etc. ATP Synthase, a molecular mill: - ATP synthase = the enzyme that actually makes ATP from ADP and inorganic phosphate. - H+ ions are flowing down their gradient, entering a stato ...
... Every molecule of glucose, potentially we make about 38 ATP. Without oxygen, you can’t do the link stage, kreb cycle, etc. ATP Synthase, a molecular mill: - ATP synthase = the enzyme that actually makes ATP from ADP and inorganic phosphate. - H+ ions are flowing down their gradient, entering a stato ...
Chapter 9 - Cellular Respiration
... From this point, each turn 2 C atoms enter (pyruvate) and 2 exit (carbon dioxide) Oxaloacetate is regenerated (the “cycle”) For each pyruvate that enters: 3 NAD+ reduced to NADH; 1 FAD+ reduced to FADH2 (riboflavin, B vitamin); 1 ATP molecule ...
... From this point, each turn 2 C atoms enter (pyruvate) and 2 exit (carbon dioxide) Oxaloacetate is regenerated (the “cycle”) For each pyruvate that enters: 3 NAD+ reduced to NADH; 1 FAD+ reduced to FADH2 (riboflavin, B vitamin); 1 ATP molecule ...
Honors Biology Ch 6 Review sheet
... 2) Write the equation for cellular respiration. Color code the reactants and products to show where the molecules end up. Show lines of oxidation and reduction. ...
... 2) Write the equation for cellular respiration. Color code the reactants and products to show where the molecules end up. Show lines of oxidation and reduction. ...
Stroma
... 6. Label a diagram of a mitochondrion, indicating the following: outer mitochondrial membrane, cristae, mitochondrial matrix. 7. Identify the location where each of the following cell processes occur: Glycolysis, Kreb’s cycle, Electron Transport (oxidative phosphorylation) 8. Name three(3) ways that ...
... 6. Label a diagram of a mitochondrion, indicating the following: outer mitochondrial membrane, cristae, mitochondrial matrix. 7. Identify the location where each of the following cell processes occur: Glycolysis, Kreb’s cycle, Electron Transport (oxidative phosphorylation) 8. Name three(3) ways that ...
Stroma
... Label a diagram of a mitochondrion, indicating the following: outer mitochondrial membrane, cristae, mitochondrial matrix. Name the location where each of the following cell processes occur: Glycolysis, Kreb’s cycle, Electron Transport (oxidative phosphorylation) Name three(3) ways that pyruvate is ...
... Label a diagram of a mitochondrion, indicating the following: outer mitochondrial membrane, cristae, mitochondrial matrix. Name the location where each of the following cell processes occur: Glycolysis, Kreb’s cycle, Electron Transport (oxidative phosphorylation) Name three(3) ways that pyruvate is ...
1. Regarding the citric acid cycle: a. Write a balanced net equation
... Radioactively labeled Pi is incorporated into cytosolic ATP only in the presence of a proton gradient across the inner mitochondrial membrane. ...
... Radioactively labeled Pi is incorporated into cytosolic ATP only in the presence of a proton gradient across the inner mitochondrial membrane. ...
Electron transport chain
An electron transport chain (ETC) is a series of compounds that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane. This creates an electrochemical proton gradient that drives ATP synthesis, or the generation of chemical energy in the form of adenosine triphosphate (ATP). The final acceptor of electrons in the electron transport chain is molecular oxygen.Electron transport chains are used for extracting energy via redox reactions from sunlight in photosynthesis or, such as in the case of the oxidation of sugars, cellular respiration. In eukaryotes, an important electron transport chain is found in the inner mitochondrial membrane where it serves as the site of oxidative phosphorylation through the use of ATP synthase. It is also found in the thylakoid membrane of the chloroplast in photosynthetic eukaryotes. In bacteria, the electron transport chain is located in their cell membrane.In chloroplasts, light drives the conversion of water to oxygen and NADP+ to NADPH with transfer of H+ ions across chloroplast membranes. In mitochondria, it is the conversion of oxygen to water, NADH to NAD+ and succinate to fumarate that are required to generate the proton gradient. Electron transport chains are major sites of premature electron leakage to oxygen, generating superoxide and potentially resulting in increased oxidative stress.