Chapter 4 CLO 1.A branch of chemistry dealing with compounds of Carbon. 2.Carbon’s has 4 valence electrons that can form covalent bonds with others atoms (Hydrogen‚ Nitrogen‚ Oxygen and Carbon atoms mostly) to make large‚ complex and diverse organic molecules. 3.The carbon skeleton vary in 4 areas‚ 1. Length 2. Branching 3. Double Bond Position 4. Presence of Rings. Carbon skeletons can have double bonds in different locations and also different numbers of double bonds. 4.Hydrocarbons
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(floating algae). When these organisms die‚ they undergo decomposition. In order to decompose these dead phytoplankton‚ bacteria need oxygen. As they consume oxygen‚ they create ‘dead zones‚’ or zones devoid of oxygen—and non-bacterial life. It is not the excess nutrients that directly causes the death of ecosystems‚ rather it is the resulting deprivation of oxygen that does them in.
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It’s really extraordinary how humans came to be‚ it all started from atoms‚ a strike of lightning and macromolecules. Carbon atoms have four valence electrons allowing them to form strong covalent bonds with many other elements‚ including hydrogen‚ oxygen‚ phosphorus‚ sulfur‚ and nitrogen. Living organisms are made up of molecules that consist of carbon and these three other elements. Carbon atoms can also bond to each other‚ which gives carbon the ability to form millions of different large and complex
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Lab Activity #3: Collection and Identification of Plankton at Lake St.George Discussion Questions 1. Phytoplankton are the organisms that were the most abundant in my sample‚ specifically from the Protista kingdom 2. I think that phytoplankton are more indicative of oligotrophic lakes‚ where-as zooplankton are more indicative of eutrophic lakes. I think this because‚ since phytoplankton are capable of producing their own energy‚ they don’t need the nutrients that eutrophic lakes offer‚ and they would
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to explain that photosynthesis is important. So even though photosynthesis can kill the plant‚ photosynthesis is important‚ because it helps grow food for omnivores and herbivores. Photosynthesis grows plants and trees‚ which produce clean‚ fresh oxygen. Photosynthesis helps us living organisms with lungs breathe. It helps us when plants go through the process called photosynthesis. During this process they snatch three main ingredients from the atmosphere. They need sunlight‚ water‚ and carbon
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referenced to as a “dead zone”is a lack of oxygen in the water. Aquatic organisms require adequate dissolved oxygen to survive. The occurrence of Hypoxia‚ or low dissolved oxygen has increased substantially. In “1960 there was 12 documented cases of U.S. Coastal areas experiencing Hypoxia‚ now there is over 300 hundred.”(Diaz & Rosenberg.2008.SAH.p11.) The inability of immobile species‚ such as mussels and oysters‚ to escape these low oxygen areas‚ makes them vulnerable to Hypoxia. These
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+ ATP. Glucose is broken down into 2 pyruvate. The pyruvate then travels through the Kreb cycle and produces carbon dioxide. The oxygen travel through the electron transport train and produces water and energy. In order for the body to maintain homeostasis while exercising more oxygen is needed and cellular respiration increases. In return for a greater intake of oxygen‚ more carbon dioxide is produced and exhaled‚ therefore changing the color of the the bromothymol quicker. The results support the
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cell activities. Anaerobic respiration is respiration in the absence of oxygen‚ hence anaerobic bacteria does not breathe at all. The purpose of respiration is to provide the cell with the appropriate molecules for creating energy in the form of adenosine triphosphate‚ ATP Many types of bacteria respire anaerobically. In other words‚ they can go through the process of respiration without oxygen present. Instead of using oxygen to help them burn the energy in their food‚ these types of bacteria use
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Introduction: Enzymes are proteins that enable chemical reactions. In the enzyme lab‚ the effects of concentration‚ temperature and pH on the functionality of the enzyme catalase. The enzyme lab was also about measuring reactions by capturing the oxygen that was generated by the reaction. Materials and Methods: Experiment 1‚ 2‚ & 3 Experiment 1 examined the effects of concentration on catalase activity. Experiment 2 examined the effects of concentration in temperature on catalase activity
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contraction of muscles‚ build up of larger molecules (e.g. proteins)‚ maintains steady body temperature (homeostasis) * Aerobic: * needs oxygen * only occurs when a certain amount of oxygen is available * C6H12O6 + 6O2 6CO2 + 6H2O + Energy * releases large amount of energy (2900 KJ) * Anaerobic: * without oxygen * [glucose lactic acid] C6H12O6 2C3H6O3 * releases small amount of energy (120 KJ) * poisonous waste (lactic acid) removed
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