INTRODUCTION/LITERATURE REVIEW THE ERYTHROCYTES A cell that contains haemoglobin and can carry oxygen to the body. Also called a red blood cell (RBC). The reddish colour is due to haemoglobin. Erythrocytes are biconcave in shape which increases the cells surface area and facilitates the diffusion of oxygen and carbon dioxide. This shape is maintained by a cytoskeleton composed of several proteins. Erythrocytes are very flexible and changes shapes
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Hypotheses Water quality parameters such as pH‚ dissolved oxygen‚ seston‚ water temperature etc. are important variables in the abundance and diversity of benthic macroinvertebrates of the Old Chelsea stream. Therefore‚ it can be hypothesized that pH and dissolved oxygen have a direct correlation on biotic factors within the stream. Furthermore‚ due to the surface water velocity variations of the stream‚ it is hypothesized that water pH and dissolved oxygen interreach variability is statistically significant
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Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration‚ or converted into starch and stored. Oxygen is produced as a by-product. This process is called photosynthesis. Temperature‚ carbon dioxide concentration and light intensity are factors that can limit the rate of photosynthesis. Plants also need mineral ions‚ including nitrate and magnesium‚ for healthy growth. They
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the diaphragm moves down. 3. The primary stimulus for breathing is the amount of carbon dioxide in the blood. 4. Oxygen moves from the alveoli to the capillaries by means of diffusion. 5. Carbon dioxide is carried in the plasma as the bicarbonate ion. 6. Hemoglobin readily takes up oxygen in the lungs‚ where the pH is neutral and the temperature is cool. 7. At the tissues‚ oxygen diffuses out of the blood and carbon dioxide diffuses into the blood. 8. In which structures does gas exchange actually
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transport of oxygen to the cells of tissues and organs by blood vessels is vital for respiration to occur. Oxygen is carried in red blood cells by the pigment haemoglobin‚ a globular protein consisting of four polypeptide chains. Both of these components of blood are structured specifically to carry out their functions of oxygen transport‚ hence ensuring efficient respiration. Erythrocytes‚ or red blood cells‚ possess a unique structure that enables them to play their role in oxygen transport. They
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having water coming in contact with these kinds of products‚ such as magnesium and gasoline. According to Robert Vettori‚ “Magnesium has a strong affinity for oxygen that it attracts the oxygen from oxygen containing compounds” (5). With this said‚ it shows that the two products burning are both magnesium and an adequate supply of oxygen. The National Fire Protection Association Fire Protection Handbook expresses that water may used to extinguish magnesium fires if it can be applied very quickly
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chemical substance appears. In this experiment we will be measuring the rate of decomposition of hydrogen dioxide with the following reaction: 2 H202 (aq) 4 2 H20 (l) + 02 (g) We can trap the oxygen gas created into a container thus showing the extent of the reaction and this will show the rate in which oxygen is created and how the rate will change when we use different initial concentrations. We do use a catalyst in this reaction to speed up the process and lower the activation energy needed to run
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each globin is a ‘haem’ unit. The haem is a ring structure with iron in the center. It is the iron that binds the oxygen in a weak interaction that can easily broken. A RBC (red blood cell) is packed with haemoglobin molecules. The cell has no nucleus‚ so more haemoglobin molecules can be included. 2 Function of haemoglobin in Transporting Oxygen: * transport of O2 * transport of some CO2 from body cells to the lungs * conversion of CO2 to HCO3- by the action
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------------------------------------------------- ------------------------------------------------- ------------------------------------------------- PHYSICAL STUDY NO.2 ------------------------------------------------- ------------------------------------------------- OXYGEN BOMB CALORIMETER & ORSAT APPARATUS ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- -------------------------------------------------
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moles of Iron were used 2. According to the law of conservation of mass‚ what is the mass of oxygen that reacts with the iron? 118.37g – 85.65g = 32.72 grams of Oxygen reacted with Iron 3. Calculate the number of moles of oxygen in the product. 32.72g/15.99g = 2.045 moles is the amount of moles of Oxygen produced 4. Use the ratio between the number of moles of iron and the number of moles of oxygen to calculate the empirical formula of iron oxide. Fe3O2 Procedure: Set up a Bunsen burner
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