The Mitochondrion The cell is the most basic unit of life. The cell serves as the place for processes such as cellular respiration‚ metabolism and energy production in the form of ATP‚ or adenosine triphosphate. Many organelles—small structures that help to carry out the daily operations of the cell‚ inhabit the cell such as the Golgi complex‚ the endoplasmic reticulum‚ the nucleus‚ or brain of the cell‚ and lysosomes. An organelle that is the place where most of the cell’s energy is generated is
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yeast undergoes alcohol fermentation in order to continue ATP production but also to recycle NAD+ that is needed for glycolysis. Without this recycling‚ glycolysis and therefore cellular respiration cannot proceed and organism will die. o How efficient is fermentation- 2% (2 ATP) efficient compared to aerobic respiration‚ which is 39% (36 ATP) efficient at capturing the energy released in the form of ATP o What amylase does to starch- Breaks down starch to individual glucose units o What gas is
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ASSIGNMENT #1 NASC 1083 BIOLOGICAL SCIENCE Rubyna May L. Espiritu Sir Adrian Guinto BSEDSS 1-1N November 15‚ 2012 The Characteristics of Life There are many properties or the signs of life that the living organisms have. In the book of biology of Mrtinez and Nazareno‚ there are nine characteristics of life just said and those are : a. Living things are highly organized and
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Test 1 Study Guide 1. Respiration * Respiration * Gas exchange * Necessary because cells require oxygen. * Exchanging O2 and CO2 * Carbon Dioxide is a waste product and must be removed from the body. * Internal respiration = gas exchange at the cellular level. * Oxygen diffuses from the blood into the tissue cells. * External respiration = gas exchange at the alveoli level. * Oxygen from the inhaled air diffuses into the blood in the pulmonary
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conversion‚ there is a one-way flow of energy back to the environment Sunlight energy reaches Earth. Producers secure some and convert it to stored forms of energy. They and all other organisms convert stored energy to forms that can do cellular work. Energy Lost Free Energy • It takes energy to break chemical bonds • Free energy – energy available to do work in any system • Endergonic reactions – Products contain more free energy than reactants – Do not proceed spontaneously
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organelle found in eukaryotic cells that play a role in biochemical processes such as respiration and energy production. Mitochondria even play an important role in apoptosis‚ or programmed cell death. This is achieved by disruption of electron transport‚ oxidative phosphorylation‚ and ATP production or even the release of proteins that trigger activation of caspase family proteases and alteration of cellular reduction-oxidation (redox) potential (Reed and Green‚ 1998). Succinate dehydrogenase (SDH)
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References: Energy III-Cellular Respiration. (2009). https://wikispaces.psu.edu. Retrieved from https://wikispaces.psu.edu/pages/viewpage.action?pageId=40045009 High Fructose Intolerance. (n.d.). Panopto Viewer. Retrieved from http://wgu.hosted.panopto.com/Panopto/Pages/Viewer/Default
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ATP OR ATP and its roles in living organisms The nature/structure of ATP and its importance as energy currency. Production and use of ATP in cytoplasm by glycolysis Production of ATP by mitochondria in Krebs cycle and ETS – aerobic respiration. Anaerobic respiration. Role of chloroplasts in ATP production via light independent reaction Uses e.g. Active transport (carrier protein shape changes)‚ Nerve action (maintaining resting potentials via Na+/K+ pump and resynthesis of ACh)‚ selective reabsorption
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Every cell‚ whether it belongs to a plant‚ bacteria or a human‚ requires energy from varying food sources to survive. However‚ when cells break down food into its sugar components‚ i.e glucose‚ they cannot use the components directly because glucose holds a lot of energy it would be inefficient to use for reactions that don’t need a lot of energy. Imagine you want to buy pencils for $5 from a store that won’t give change‚ it is more economical to use a $5 or $10 bill than a $100‚ that way there is
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Denisse Gayosso-Lucano BIO 1140 As industrialization and urbanization increased in America‚ plants‚ animals and humans became endangered by the rise in temperatures and carbon levels. It was then that Carla‚ a carbon atom was born at the Sahara desert. At night‚ Carla and her friends went outside to watch the stars peacefully. It had never occurred to them that the night would bring a sudden kidnap. All of Carla’s friends and Carla were attached to two oxygen atoms. Unfortunately‚ Carla fainted
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