Title: Benedict ’s test for Reducing Sugars Testable Question: Are all carbohydrates reducing sugars? Hypothesis: If the carbohydrate contains available ketone or aldehyde molecules then they are reducing sugars. Variables: a. Independent: Function groups react w/ reagent b. Dependent: Color change (red‚ orange‚ yellow) Control: Water Materials: - 4 mL of each solution (Water‚ Starch‚ Glucose‚ Maltose‚ Sucrose‚ Onion Juice‚ Potato slice‚ Milk) - 8 test tubes
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Trees alter the environment in which we live by moderating climate‚ improving air quality‚ conserving water‚ and harboring wildlife. Climate control is obtained by moderating the effects of sun‚ wind‚ and rain. Radiant energy from the sun is absorbed or deflected by leaves on deciduous trees in the summer and is only filtered by branches of deciduous trees in winter. We are cooler when we stand in the shade of trees and are not exposed to direct sunlight. In winter‚ we value the sun’s radiant energy
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Analysis: The graph of oxygen uptake vs time taken to run 1.5 miles has a negative linear association. As oxygen uptake increases‚ the time taken to run 1.5 miles decreases. This is can be seen through the gradient which has a value of 0.1705. This means that as the oxygen uptake increases by 1 ml/kg the amount of time taken to run 1.5 miles tends to decrease by approximately 1.7 minutes. The graph has a moderate relationship because the data is scattered in a wide band along the line of best fit
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Observations: Part I: Reaction between iron and oxygen Appearance of steel wool after 20 minutes From (relatively) shiny metal strips to not-so-shiny strips that are stained with dark‚ reddish-brown stuff. Part II: Decomposition of hydrogen peroxide Appearance of potato and hydrogen peroxide combination: Lots of white‚ foamy bubbles around the potato slices. Day 2 Observations: Part III: Reaction between zinc and acetic acid Appearance of penny in vinegar after
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Lung Adenocarcinoma – Overview Lung adenocarcinomas usually begin in tissues that lie near the outer parts of the lungs‚ and may be present for a long time before they cause symptoms and are diagnosed. Adenocarcinoma is the most common form of lung cancer found in women‚ and is often found in non-smokers. It is also the most common type of lung cancer in people under the age of 45 and the most common type of lung cancer among all Asians. One subtype of lung adenocarcinoma‚ bronchioloalveolar carcinoma
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Lung Cancer By Brayan Almora and Hector Aparicio Pedroza Ms. Powell‚ 7th Language Arts Problem – Solution Paper May 15‚ 2014 Lung Cancer Causes and Treatments Lung cancer is defined as abnormal cell tissue that forms in tissues of the lungs. It is estimated that there are 224‚210 new cases every year‚ while the estimated deaths are numbered at 159‚260 per year . There are several options of treatment and are as follows: Surgery‚ Chemotherapy‚ Radiation Therapy‚ Immunotherapy
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of the Lungs When you breathe‚ your lungs take in oxygen from the air and deliver it to the bloodstream. The cells in your body need oxygen to work and grow. During a normal day‚ you breathe nearly 25‚000 times. People with lung disease have difficulty breathing. There are numerous things that affect the lungs in a negative way. Smoking is a major contributor to these issues and it helps in no way. It destroys the lungs and intensifies any existing problem. Diseases of the Lungs Lung disease
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out of carbon. According to Encyclopedia: "The use of special manufacturing techniques results in highly porous charcoals that have surface areas of 300 - 2‚000 square meters per gram. Charcoals are widely used to adsorb odorous or colored substances from gases or liquids." The problem with charcoals is that its production efficiencies are generally low‚ with as much as 60-80% of energy in the wood lost. Adding to this loss is the poor efficiency of many charcoal stoves‚ some as low as 3%. (http://www
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plaguing our society all across the world today is the smoking of tobacco. The worst part is‚ most people are aware of the detrimental health effects involved in its use. But why do people begin smoking if they known of the complications that arise from it? Why do they continue you smoke regularly knowing of its irreversible effect upon our bodies? Why is such a deadly product still on shelves‚ and how dit it start to begin with? Most people known somewhat of the problems associated with tobacco
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CO2) through externaal respiration for bodily fuctions to operate. In humans and mammals‚ the anatomical features of the respiratory system include airways‚ lungs and plenty of muscle‚ nose‚ pharyngeal regions‚ larynx‚ and trachea. Five disorders that relate or effect the respiratory system are: Pulmonary HypertensionChronic Obstuctuve pulmonary disease (COPD)EmphysemaAsthmaBronchitisAsthmaCommon symptoms of someone with Asthma include: wheezing coughing‚ chest tightness shortness
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