more than likely‚ the dog did indeed descend from the gray wolf. Although the oldest fossils of a domesticated dog are from a 14‚000-year-old dog grave‚ DNA evidence suggests dogs diverged from wolves much earlier than that (with estimates ranging from 15‚000 to more than 100‚000 years ago) [source: Wade]. Regardless‚ historians agree that humans domesticated dogs before any other animal -- making dog man’s oldest friend‚ if not his best. Scientists can only guess how dogs and humans first became
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Cellular Respiration and Fermentation Facts to Remember 1. Cellular respiration is a catabolic series of reactions. 2. All living forms conduct some form of cellular respiration‚ either aerobic or anaerobic. a. Aerobic is in the presence of oxygen b. Anaerobic is in the absence of oxygen or none oxygen requiring. 3. The starting molecules consist of the biological molecules with carbohydrates (monosaccharides) as the first choice. The order of use is given below. a. Carbohydrates b.
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Photosynthesis and Respiration Unit2 – IP 1. A) Photosynthesis space is a process in which the energy from light is used to produce carbohydrates. Aside from using light energy‚ photosynthesis includes carbon the oxide and water. A1) In order to generate energy aerobic respiration requires oxygen‚ although fats and proteins and carbohydrates can be consumed and processed as reactant‚ is the usual method of breaking down in glycolysis and usually requires the pyruvate to enter the mitochondrion
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Assignment 1 – PAPER #1; PHOTOSYNTHESIS AND CELLULAR RESPIRATION Name: Melvin G. Abramson SCI 115 – Essentials of Biology Professor: Casey Bethel Date: May 1st‚ 2012 Photosynthesis is the progression of translating light energy to chemical energy and storing it in the acquaintance of sugar. This process occurs in plants and some algae. Photosynthesis takes place in the chloroplasts‚ distinctively using chlorophyll‚ the green pigment implicated in photosynthesis
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of Sugars on Yeast Respiration Introduction Cellular respiration can be defined as the release of energy‚ or the breakdown of carbohydrates into carbon dioxide and water1. Cell respiration takes place in the mitochondria of animals and in the cytoplasm of plants. The formula for aerobic cellular respiration is: c6H12O6+ 6O2→6CO2+6H2O Aerobic respiration occurs when oxygen is present‚ while anaerobic respiration occurs when there is no oxygen present. In anaerobic respiration‚ ethanol and carbon
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Cellular Respiration Purpose The purpose of this experiment was to determine the effect of body mass and temperature on the rate of respiration in the mouse. Hypothesis When the temperature is reduced‚ cellular respiration will increase. Measurement Weight the mouse and use soda lime for mouse to perspire. Oxygen was inhaled and carbon dioxide was exhaled. Carbon dioxide was absorbed by soda lime. Rate of respiration was measured in terms of ml of oxygen per min over grams. General
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Effect of Temperature on Cricket Respiration Crickets are ectotherms that rely on their environment as a source of heat for their metabolism. Warmer temperatures allow crickets to respire at a greater rate. Respiration rate (ppm/sec/g) 1.2 1 0.8 0.6 0.4 0.2 0 0 5 10 15 20 25 30 35 40 45 Temperature (°C) Figure 1: Respiration rate (ppm/sec/g) of crickets at 6 different temperatures (°C). Values are means of 6 respiration rate measurements. Error bars represent
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inorganic cofactor such as Magnesium to the rate of respiration of yeast was determined using Durham tube assembly with the substrate glucose. After thirty minutes‚ the test tube with the cofactor in the form of Magnesium sulphate MgSO4 showed the higher amount of carbon dioxide evolved which was measurable through volume and was one of the by- products of cellular respiration. This stated that the higher amount of CO2 evolved‚ the higher the rate of respiration. Thus‚ the hypothesis “If enzymes need cofactors
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Cellular respiration is the process of obtaining energy in order to produce ATP. Cells obtain energy for their metabolic reactions. Cellular respiration includes both aerobic and anaerobic processes. Aerobic is when oxygen is consumed as a reactant and an aerobic is without oxygen. There are three phases in cellular respiration glycolysis‚ Krebs cycle‚ and the electron transport chain. Glycolysis is the first stage and
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making sure you use full sentences in your responses. Introduction and Key Concepts What will you observe in this investigation Write the equation for cellular respiration. What are some processes in plants that require respiration Design of the Experiment What are the three ways in which you can measure the rate of cellular respiration What method will be used in this demonstration Sketch a respirometer and label its important features. What does it measure As the organism inside the respirometer
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