the flame showed small flash with a pop. Oxygen Step B: Describe the hydrogen peroxide and manganese reaction. As adding hydrogen peroxide to the test tube containing a few pieces of manganese metal‚ gas bubbles rose from the solution slowly at first and vigorously over time. This reaction continued for a long time and solution turned into brown opaque color. Step E: Record your observations with the glowing wooden toothpick and the oxygen-filled pipet. The flame of the glowing wooden
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month old boy who was born at 26 weeks and diagnosed with chronic lung disease. He was sent home on 0.3 litres (L) of oxygen per minute with the view of gradually weaning this down as he grew stronger. When I joined the community nurse visiting Sam at home‚ he had been weaned down to 0.1L of oxygen per minute‚ so was now having his time on oxygen weaned down; from continuous oxygen eventually to none. The community nurses follow the trust’s nursing assessment guidelines which are based on The Twelve
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October 22‚ 2014 Biology 1112.317 Lab Report Amounts of Carbon Dioxide/ Oxygen Animals are Producing/ Consuming Introduction Every cell needs a source of energy in order to perform their daily functions. However the process to get this energy is different for plant and animal cells. Plants cells undergo a process called photosynthesis where light energy from the sun is used to convert carbon dioxide and water into glucose and oxygen. For animal cells‚ the process is known as cellular respiration by
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strategically answered in the following work. The Respiratory System delivers oxygen to the body and takes the carbon dioxide away. This system is made up of organs that allow you the ability to breath. These organs are the Lungs‚ Trachea‚ Bronchi‚ and the Diaphragm. The lungs are considered the main organ of the system. It takes in the oxygen and releases the carbon dioxide. How this happens is the red blood cells take oxygen to the body and take the carbon dioxide to the lungs‚ and this allows us to
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40) Describe the structure of a mammalian respiratory system. Include in your discussion the mechanisms of inspiration and expiration. In mammals‚ oxygen first passes through the nasal cavity. The nasal cavity is covered with mucus and cicilia to filter the air. The nasal cavity leads to the pharynx. The pharynx consists of the eustachian tube and the tonsils. The inhaled air then passes to the larynx‚ trachea‚ and bronchi. The bronchi lead to the bronchioles in the lungs. In the lungs the pleural
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the water. Another element that the Brook Trout need is oxygen. All trout need 7-10 ppm of oxygen. If oxygen is too low in the water the trout would become slow and would maybe even die. They would be swimming very fast one day‚ then you come in the next day and they look like they had gained 100 years of their lifespan. The material that provides the oxygen to the trout tank is the oxygenator or air pump. It pumps 10 liters of oxygen
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An investigation to see how much oxygen is given off when different concentrations of catalase are added with hydrogen peroxide. Aim: To see if changing the concentration of catalase (found in celery) with hydrogen peroxide affects the amount of oxygen given of. Background Information: (Hydrogen peroxide - H2O2 1/2O2+H2O) Enzymes: Hundreds of chemical reactions happen simultaneously inside living cells and it’s the job of enzymes to control and regulate the various metabolic
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aluminium at the cathode and oxygen at the anode. 4Al3+ + 12e- 4Al (aluminium metal at the (-) cathode) reduction. 6O2- - 12e- 3O2 (oxygen gas at the (+) anode) oxidation. Aluminium is more dense than the alumina/cryolite solution and so it falls to the bottom of the cell where it can be tapped off as pure liquid metal. The overall reaction is aluminium oxide aluminium + oxygen. 2Al2O3(l) 4Al(l) + 3O2(g) Oxygen is given off at the
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dioxide nitrogen; helium oxygen; nitrogen. oxygen; carbon dioxide Correct nitrogen; hydrogen See Section 49.1: What Physical Factors Govern Respiratory Gas Exchange? Score: 1 of 1 2. Which of the following best explains the limiting effects of water in oxygen exchange? Low diffusion rate and high oxygen content at high water temperatures Low diffusion rate and low oxygen content at high water temperatures Correct High diffusion rate and low oxygen content at low water temperatures
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Oxygen Transport (pp. 830–832; Figs. 22.20–22.21) 1. Because molecular oxygen is poorly soluble in the blood‚ only 1.5% is dissolved in plasma‚ while the remaining 98.5% must be carried on hemoglobin. a. Up to four oxygen molecules can be reversibly bound to a molecule of hemoglobin—one oxygen on each iron. b. The affinity of hemoglobin for oxygen changes with each successive oxygen that is bound or released‚ making oxygen loading and unloading very
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