Mitochondria are a key organelle responsible for aerobic respiration in eukaryotic cells. The majority of the energy that eukaryotes rely on is obtained through the use of mitochondria‚ thus emphasizing the importance of these dynamic organelles. Due to the importance in respiration mitochondria are found in high abundance in oxidative tissues such as heart‚ kidney‚ and the brain1‚2 3. Inner mitochondrial membrane plays host to a collection of enzyme complexes termed the electron transport chain
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through cellular respiration. Cellular respiration involves four stages: glycolysis‚ the grooming phase‚ the citric acid cycle‚ and oxidative phosphorylation. The final two stages listed occur in the mitochondria. Part II 2. What are the consequences of a proton gradient and how could a gradient be used in the mitochondrion? List all the possibilities that come to mind. Protons have a strong positive charge. The electron transport chain that is part of the process of cellular respiration powers carrier
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another. Electron aids in the gradual‚ stepwise release of the energy from oxidation‚ rather than rapid combustion. ATP power the activities that requires work --- one of the most which is movement. Explain the purpose of oxygen in respiration Without oxygen‚ cellular respiration could not occur because oxygen serves as the final electron acceptor in the electron transport system. The electron transport system would therefore not be available. Describe the structure of mitochondria A mitochondrion contains
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and can be utilised by the body to stay alive. Oxygen is used to produce ATP for energy “the principle energy transferring molecule in living systems”(Anatomy and Physiology‚ Seeley‚ Stephens‚ Tate). Oxygen is essential to produce ATP. Internal respiration refers to the intracellular metabolic processes carried out within the mitochondria‚ which use O2 and produce CO2 during the derivation of energy from nutrient molecules. It involves the exchange of gases within the body. Blood vessels serve as
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what is life What is Life? Bio/101 What is Life? Read each statement. Write a 100-word summary explaining how that media piece supports that statement and include reference citations. 1. Find a media piece—article‚ video‚ presentation‚ song‚ or other—related to the scientific method‚ creating hypotheses‚ or designing experiments. Include the link or reference citation for the piece and describe how it helped you better understand how the scientific method is used to create hypotheses
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the one science in which all the other sciences are based. In biology you learn about living organisms and their composition. Organisms are alive because of chemistry - Why we breathe oxygen‚ how we make energy‚ elimination of waste products‚ cellular respiration‚ etc. All of these are based on how living organisms use chemistry to live. Biological organisms have chemical compositions. Carbon is found in all living organisms. After that‚ because there are many chemical processes occuring in various
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of the cell receiving the message‚ the three stages of cell signaling are A) the paracrine‚ local‚ and synaptic stages. B) signal reception‚ signal transduction‚ and cellular response C) signal reception‚ nucleus disintegration‚ and new cell generation. D) the alpha‚ beta‚ and gamma stages. E) signal reception‚ cellular response‚ and cell division. 4. When a cell releases a signal molecule into the environment and a number of cells in the immediate vicinity respond‚ this type of
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PLASTIDS Plastids are large cytoplasmic organelles. Plastids are major organelles found in the cells of plants and algae. Plastids are the site of manufacture and storage of important chemical compounds used by the cell. Plastids often contain pigments used in photosynthesis‚ and the types of pigments present can change or determine the cell’s colour. The term plastid was derived from the Greek word plastikas meaning formed or moulded. This term was coined by Schimper in 1885. In plants
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Exam 3 Review Sheet Equation for cellular respiration‚ be able to follow carbons from glucose to carbon dioxide Four stages of cellular respiration Glycolysis‚ location‚ three phases‚ output. Breakdown of pyruvate‚ location‚ input and output Citric acid cycle‚ overall goal‚ main processes. Oxidative phosphorylation‚ electron transport chain‚ final acceptor Chemiosmosis‚ role of H ions‚ role of ATP synthase Fermentation‚ steps in the process‚ alcoholic and lactate‚ where each occurs Be able
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organization Anaerobic respiration: NOT O2 Aerobic respiration: O2 final acceptor ATP is produced by the Proton Motive Force Chemiosmosis H+ accumulates outside‚ OH- inside resulting in energized state When H+ enters‚ ATP is generated *Heterotrophy (i.e.‚ chemoheterotrophy) is the use of an organic compound as a source of carbon and energy. *Lithotrophy is the use of an inorganic compound as a source of energy. Energy-Generating Metabolic Pathways 1) Aerobic respiration a) Heterotrophic
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