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Table of Contents
Table of Contents

... Figure 7.9 The Citric Acid Cycle Releases Much More Free Energy Than Glycolysis Does ...
Mitochondrial Inputs - School of Applied Physiology
Mitochondrial Inputs - School of Applied Physiology

... – ~15 more ATP per pyruvate ...
Slides
Slides

... • Linear electron flow produces 6 ATP & 6 NADPH – Calvin cycle requires 9 ATP ...
Final Examination
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 ...
Liver Function - Wk 1-2
Liver Function - Wk 1-2

... In order for cells to function normally, their blood glucose levels need to be kept relatively constant (4-5 mmol). The pancreas plays a minor role in regulating blood sugar levels via the production of the hormones Insulin and Glucagon. Insulin is an anabolic hormone that promotes the storage and ...
Ch. 22 Glycolysis • Explain how glucose is universal fuel, oxidized in
Ch. 22 Glycolysis • Explain how glucose is universal fuel, oxidized in

Lactanase - Vita Flex
Lactanase - Vita Flex

... converted through many steps to enter the Krebs cycle to produce ATP, the basic biological energy source. In the anaerobic metabolism of intense exercise, these steps must be made without additional oxygen. A crucial junction is the conversion of pyruvate (from glycogen) to acetyl coenzyme A, where ...
Anaerobic glycolysis
Anaerobic glycolysis

... phosphorylation) and 2 NADH • Pyruvate can enter mitochondria for complete oxidation to CO2 in TCA + electron transport chain • Anaerobic glycolysis reduces pyruvate to lactate, and recycles (wastes) NADH -> NAD+ • Key enzymes of glycolysis are regulated: hexokinase, PFK-1, pyruvate kinase, PDH C ...
Fed State Insulin Insulin Fasted State/ Starvation
Fed State Insulin Insulin Fasted State/ Starvation

Energy
Energy

...  Discuss the procedure and what exactly is happening at each step. Can you find where all of the reactants and products come into play for the lab?  When you have finished. Gather the materials you will need for the lab from the back table and place them at one of the lamps for tomorrow. Set your ...
Review Problems #2 (Enzyme Review, Phosphatases
Review Problems #2 (Enzyme Review, Phosphatases

... think this difference exists? Where are similar activation strategies employed in biosynthesis? 15) Which amino acids derive their carbon skeletons completely from oxaloacetate? 16) Which amino acid is derived from oxaloacetate and pyruvate? What carbon piece is lost in this process? What cofactor p ...
Protist Homework
Protist Homework

... autotroph chemoheterotroph schizogamy stipe ...
Chapter 5 Microbial Nutrition and Culture
Chapter 5 Microbial Nutrition and Culture

... an electron donor (such as NADH) and an electron acceptor (such as O2) to the transfer of H+ ions (protons) across a membrane. • A series of oxidation-reduction reactions, the electron transport chain (ETC) performs 2 basic functions: 1. Accepting electrons from an electron donor and transferring th ...
Slide () - Anesthesiology - American Society of Anesthesiologists
Slide () - Anesthesiology - American Society of Anesthesiologists

... amino acids into circulation, urinary nitrogen losses, and impaired uptake of amino acids in skeletal tissue. Lean tissue is catabolized, releasing amino acids into circulation (including glutamine, alanine, and the branched chain amino acids [BCAAs]), while hepatic amino acid uptake is enhanced. Th ...
Practice AP Multiple Choice Exam 1 Do NOT write on this! 1. Which
Practice AP Multiple Choice Exam 1 Do NOT write on this! 1. Which

... 72. Process in which O2 is released as a by-product of redox reactions. 73. Process in which CO2 is released as a by-product of redox reactions. 74. Process in which carbon from CO2 is incorporated into other organic molecules. 75. Process found in both photosynthesis and cellular respiration. 76. P ...
ATP - acpsd.net
ATP - acpsd.net

Organic Compounds
Organic Compounds

... - Does not dissolve in water ...
1st exam
1st exam

... 2)About 90 % of the digestion and absorption of food takes place in the small intestine. 3)Glucose & fructose are absorbed by secondary active transport 4) Glycolysis is the major pathway for utilizing of glucose and is found in all 5)In ETC, Q (Co Q) serves to shuffle electrons from complexes I, II ...
Respiration - Indian River Research and Education Center
Respiration - Indian River Research and Education Center

... –O2 uptake and CO2 production is calculated by  measuring the concentration differences  between the inlet and outlet & knowing the gas  ...
Metabolic fate of amino acid
Metabolic fate of amino acid

... (3)Ammonia Transport by L-amino acid oxidases • L-amnio acid oxidase is present in liver and kideny tissue. • These autoxidizable flavoproteins oxidize amino acids to an a -imino acid that adds water and decomposes to the corresponding a -keto acid with release of ammonium ion (Fig.11.3). • The red ...
Print - Circulation Research
Print - Circulation Research

... and pyruvate is formed in the cytosolic compartment 1 of the myocardial cell. Subsequent entry of pyruvate into the mitochondria for oxidative metabolism in the citric acid cycle requires an equivalent oxidation of cytosolic NADH by the mitochondrial electron transport chain, which regenerates NAD. ...
Chapter
Chapter

...  Glycolysis is the first stage of aerobic respiration and of anaerobic routes (fermentation pathways)  As enzymes break down glucose to pyruvate, the coenzyme NAD+ picks up electrons and hydrogen atoms  Net energy yield is two ATP ...
Chapter 9
Chapter 9

... membrane (cristae) of the mitochondrion • Most of the chain’s components are proteins, which exist in multiprotein complexes • The carriers alternate reduced and oxidized ...
9.3 Fermentation
9.3 Fermentation

... happens when oxygen is present • What happens if oxygen isn’t available? ...
Energy Systems For Fat Loss
Energy Systems For Fat Loss

... system needs to be trained part of the aerobic system ...
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Citric acid cycle



The citric acid cycle – also known as the tricarboxylic acid (TCA) cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats and proteins into carbon dioxide and chemical energy in the form of adenosine triphosphate (ATP). In addition, the cycle provides precursors of certain amino acids as well as the reducing agent NADH that is used in numerous other biochemical reactions. Its central importance to many biochemical pathways suggests that it was one of the earliest established components of cellular metabolism and may have originated abiogenically.The name of this metabolic pathway is derived from citric acid (a type of tricarboxylic acid) that is consumed and then regenerated by this sequence of reactions to complete the cycle. In addition, the cycle consumes acetate (in the form of acetyl-CoA) and water, reduces NAD+ to NADH, and produces carbon dioxide as a waste byproduct. The NADH generated by the TCA cycle is fed into the oxidative phosphorylation (electron transport) pathway. The net result of these two closely linked pathways is the oxidation of nutrients to produce usable chemical energy in the form of ATP.In eukaryotic cells, the citric acid cycle occurs in the matrix of the mitochondrion. In prokaryotic cells, such as bacteria which lack mitochondria, the TCA reaction sequence is performed in the cytosol with the proton gradient for ATP production being across the cell's surface (plasma membrane) rather than the inner membrane of the mitochondrion.
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