Cellular Respiration Scientific Lab: lose control Adriana Resendiz Brandon Morse Halle Vogelpohl Clackamas Community College Cellular Respiration Scientific Lab: Lose Control Introduction My group wanted to find out the effects of an increase of mitochondrial suspension on the rate of aerobic cellular respiration. Specifically we're focusing on the second step of this process, The Kreb’s Cycle. Before the Kreb’s Cycle, the process of Glycolysis breaks glucose into 2 Pyruvate molecules, which is
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In the cardiac muscle, energy production from available substrates is obtained by step-by-step, enzymatically controlled substrate metabolism and mitochondrial oxidative phosphorylation, in which the energy content of fuels is transferred to the high-energy phosphate bonds of adenosine triphosphate (ATP). In turn, the energy necessary to produce contractile work from hydrolysis of ATP is produced primarily from the metabolism of carbohydrates and FFAs glucose metabolism is an important source of
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Metabolism III: Oxidative Cellular Respiration Introduction Oxidative cellular respiration is composed of series metabolic processes that convert broken down food molecules into usable energy in the form of adenosine tri-phosphate (ATP). The process follows oxidation (catabolic) and reduction (anabolic) pathways. Processes involved are glycolysis, Krebs or tricarboxylic acid (TCA) cycle, and the electron transport chain. One step in the TCA cycle is the enzyme-catalyzed conversion of succinate
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ATP Synthase – an Example for Chemical Energy Regulated Protein ATP synthase is enzyme located mainly in mitochondrial inner membrane and bacterial plasma membrane, coupled with the proton concentration gradient developed by electron transport chain carrying the synthesis of ATP from ADP and inorganic phosphate. The molecular mass of ATP synthase is around 550. The difference in molecular mass is due to different stoichiometry arrangements of subunit c, whose number ranges from 8 to 15. In Lehninger:
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UNIVERSITI TUNKU ABDUL RAHMAN CENTRE FOR FOUNDATION STUDIES FOUNDATION IN SCIENCE MAY 2013 FHSB 1214 BIOLOGY I TUTORIAL 7 CELLULAR RESPIRATION Student’s Guide: At university level, the tutor facilitates student learning without spoon-feeding. Therefore, you are expected to: • Read your textbook, attempt the questions before the tutorial • You may enter the class and sign your attendance after showing your tutor that all tutorial questions have been completed; even if
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Kevin Lopez 03/18/13 (008945285) Succinate Dehydrogenase Enzyme Activity in Mitochondrial Fraction Succinate dehydrogenase (SDH) is an enzyme that catalysis the oxidation of succinate to fumarate in the citric cycle. During this step, electrons removed from succinate directly reduce an electron acceptor, known as FADH2; however, for this laboratory experiment an artificial electron acceptor, dichlororphenolindophenol (DCPIP), was utilized. By inhibiting complex IV of the electron transport chain
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Photosynthesis and Respiration and the Links Shawna Smith November 24, 2013 IP2-SCIE206-Biology Photosynthesis and Respiration and the Links The sun plays a vital role in the survival of life on our planet. We all use its light for many reasons. We use it to create energy for some of our basic needs. There are other ways to create energy for some of our daily life, and other living things can create energy by no light source. The energy is produced by photosynthesis and respiration. This helps
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BIO TEST 2 STUDY GUIDE CHAP. 5 BIOLUMINESCENCE - Light produced from chemical reactions that change chemical energy to light energy, used by invertebrates and fishes to protect themselves from predators. MEMBRANES – phospholipid bilayer, contains embedded and attached proteins, a fluid mosaic model (phospholipids are in constant lateral motion, but rarely flip to the other side of the layer) PHOSPHOLIPIDS – many made from unsaturated fatty acids with kinks in the tail (kinks prevent liquid
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History Back in the 1840s, the presence of granule-like structures within muscle cells and other cell types were being recognized by several scientists. (Ernster and Schatz 1981) In 1890, Richard Altmann, who was a cytologist, used a dye technique to detect the granules and termed them as “bioblasts.” He speculated that they were the basic units of cellular activity. (Ernster and Schatz 1981) It was in 1898 when Carl Benda gave these bioblasts a new the Greek name “mitochondria” meaning thread
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Processes common to living organisms Laura Judges TABLE OF CONTENTS Chapter 1 page Introduction to life processes 2 Chapter 2 page Movement 2-3 Chapter 3 page Repoduction 3 Chapter 4 page Sensitivity 3-4 Chapter 5 page Growth 4 Chapter 6 page Respiration 5 Chapter 7 page Excretion 5-6 Chapter 8 page Nutrition 6-7 Chapter 9 page Conclusion 7-8 Chapter 10 page Bibilography 9 Introduction to life processes The most basic of living things consist of just one single cell for example bacteria, while
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