mae up of water vapour‚ nitrogen‚ and oxygen. Suggest why oxygen (found as O2 in the air we breathe) is more likely to react rather than nitrogen (N2). The surface of Na and K could be tarnished because of reaction with oxygen. If Na or K is burned in air‚ the results are mainly formation of white sodium peroxide‚ Na2O2 and orange potassium superoxide‚ KO2. 2Na (s) + O2 (g) → Na2O2 (s) K (s) + O2 (g) → KO2 (s) Oxygen‚ O2 is more likely to react than nitrogen‚ N2 because the oxygen molecule has
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from chlorophyll‚ the green pigment in the chloroplasts. Chlorophyll plays an important role in the absorption of light energy during photosynthesis. Chloroplasts are found mainly in mesophyll cells forming the tissues in the interior of the leaf. O2 exits and CO2 enters the leaf through microscopic pores called stomata in the leaf. Veins deliver water from the roots and carry off sugar from mesophyll cells to nonphotosynthetic areas of the plant. A typical mesophyll cell has 30–40 chloroplasts
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This Document is a Historical Narrative type‚ it was established by the Dáil Éireann (Irish Assembly) the 21 of January of 1919‚ at its first meeting in the Mansion house (the official residence of the lord Mayor) in Dublin‚ its main objective was to declare the condition of complete freedom for the Irish People‚ to repudiate the military occupation of English troops and also to state the independence of the Republic of Ireland. It was written both in English and in
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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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Taking the External perspective on Strategy: Entry 1. Describe Ryan Air’s entry strategy: Ryan Air started ‘small’ by initially focusing on the Dublin-London service four round trips per day with a 44-seat turboprop. At this time‚ they have yet to receive permission to fly larger jet aircraft on the route. They also focus on 2 main areas: First-rate customer service and simple‚ single-fare tickets with no restrictions. Additionally‚ Ryan Air would offer meals and amenities that were comparable
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The literary works of Irish writer James Joyce are perhaps the most studied‚ argued and admired of all modern classics. Joyce‚ who was born near Dublin in 1882‚ was the eldest son in an impoverished‚ middle-class family. Educated by Jesuits at Clongowes Wood College‚ Belvedere College in Dublin‚ and University College‚ he majored in philosophy and literature. He exiled himself from Ireland in 1904 and moved to Trieste where he taught English at the Berlitz School from 1905 to 1915. His love of language
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HAEMOGLOBIN Transition Metals In Biology • Coordination compounds participate in many important biological processes in plants and animals. • The following are such processes: • 1. Transport and storage of oxygen • 2. Electron transfer • 3. Catalysis • 4. Photosynthesis TRANSPORT AND STORAGE OF OXYGEN HAEMOGLOBIN Haemoglobin‚ the red pigment in red blood cells carries oxygen from the lungs to the tissues. It is called the respiratory pigment. It delivers the oxygen molecule to the
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Study guide for exam 2. Chapter 7 ‐ Membrane Structure and Function Define fluid mosaic model semi‐permeability amphipathic molecules What is the effect of unsaturated fatty acids on membrane structure and properties? What is the effect of cholesterol on membrane structure and properties? Membrane Proteins and Their Functions peripheral Integral proteins Classification based on function (transport‚ enzymatic activity‚ cell‐cell interactions‚ etc.) How do proteins get to cell surface
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Anatomy Finals’ Notes Blood Vessels and Hemodynamics Arteries‚ Capillaries and Veins arteries --> arterioles --> capillaries --> venules --> veins Arteries = away from heart Veins = toward heart Only capillaries directly serve cells Tunica Intima = inside of blood vessel. Single layer of cells similar to the lining of the heart Tunica Media = middle layer. Smooth muscle...regulates diameter of vessels Tunica Adventitia (externa) = outer layer. Collagen
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F It is difficult to measure the volume of water produced from the reaction between oxalate ions and permanganate ions in aqueous solution. 1 11 T During the decomposition of hydrogen peroxide solution‚ oxygen gas is formed. 2H2O2(aq) 2H2O(l) + O2(g) If the reaction vessel is a closed system‚ the pressure inside the vessel will increase. The progress of the reaction can be followed by measuring the pressure inside the vessel with a pressure sensor connected to a data-logger interface and a computer
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