Animal metabolism consists of the utilization of nutrients absorbed from the digestive tract and their catabolism as fuel for energy or their conversion into substances of the body. Metabolism is a continuous process because the molecules and even most cells of the body have brief lifetimes and are constantly replaced‚ while tissue as a whole maintains its characteristic structure. This constant rebuilding process without a net change in the amount of a cell constituent is known as dynamic equilibrium
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The Effect of pH on the Rate of Osmosis Using a Glucose Solution Melissa Werderitch Biology 157 11/6/06 Introduction In a journal article written by Florian Lang‚ osmosis is essentially explained as the flow of water from one area to another that are separated by a selectively permeable membrane to equalize concentrations of particles in the two locations (Lang‚ 1997). Osmosis is able to maintain osmotic pressure and regulate a cell’s volume. In a hypotonic () or hypertonic () environment
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In the 5000m race the runner must use all 3 energy systems ‚ which are ATP‚ aerobic and lactic acid systems to succeed as the race has different areas needed for their use‚ all 3 energy systems contribute regardless of the intensity or duration of the exercise. When the athlete comes to the starting line he/she most probably will want to make a dashing start to the race to tactically get a good starting position‚ so must get off the line‚ in the first 40-50m‚ as hard as he or she can. By getting
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Sir Safar Lecture 2 Finals Pentose Phosphate Pathway (S. 70) Alternative pathway for glucose oxidation. Similar to glycolysis‚ but instead of having pyruvate as the end product it is diverted to other pathways. Supplier of energy to the cell in the form of NADPH (a reducing power for biosynthesis). It is also referred to as hexose monophosphate shunt. *Fate of glucose 6-phosphate (G 6-P) IN THE PPP (S. 71) Taken out from glycolysis and converted into Ribulose 5-phosphate. With the conversion
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Microbiology Home Assignment Student Name: Aisha Mohamed K-215810920 Lecturer Name: Dr. Faruk Sarkinfada Task 1: Describe the different classes of bacteria based on: a. Cell wall composition • :Gram negative . • Gram positive. b. Nutritional requirements : • Autotroghs:take nutrition from carbon dioxide. • Heterotrophs take the nutrition from organic carbon(carbs‚lipids‚protein) • Prototroph: take nutrition from sunlight. • Chemotrophic take nutrition from chemicals. c. Oxygen requirement
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The first step in the steroidogenesis takes place within the mitochondria where CHOL becomes a substrate . The transport of free CHOL from the outer mitochondrial membrane to the inner mitochondrial membrane is facilitated by the steroidogenic acute regulatory protein (StAR). Within the mitochondria CHOL is converted to pregnenolone (PREG) by the side-chain cleavage enzyme known as CYP11A1. The conversion to PREG is the rate-limiting step and the following intermediate steps are taken place in the
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How does photosynthesis impact the flow of energy and the cycling of nutrients‚ you ask? Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis provides the base for the one way flow of energy through the biosphere. Plants convert energy from the sun into sugars‚ which provide fuel for themselves and for other organisms. Photosynthesis also cycles carbon and oxygen nutrients through the
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Metabolism By: Who ever Enzymes Enzymes act as a catalyst by speeding up or slowing down processes in the body. A protein enzyme has a particular shape that contains an active site. An active site is where a substrate fits into place to have its bonds either built or broken. At which time the products or product produced are released. The enzyme remains to continue to act on any available substrate. Hereditary Fructose Intolerance AldolaseB is found mainly in the liver. The second
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Biochemistry GRT 1 Task 4 -Case Studies Marie Marks Western Governors University Introduction The two case studies given both involve in the processes of making energy that the body needs to maintain and sustain life. Each case is a different diagnosis but they both have some involvement in the production of ATP and other products when creating energy. If someone has an issue with the production of energy it is hard to maintain life in the body. The body has many different enzymes that are
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According to Dr. Kravitz in his article called “The Marvelous Mitochondria” The Mitochondria was discovered in 1890 by a German cell Biologist Richard Altmann under the name of bio blasts. He first theorized that the bio blasts had metabolic and genetic self-sufficiency characteristics. Years later‚ it was given a name change by another German Biologist‚ Karl Benda‚ to the name of Mitochondria. Today‚ we know that the Mitochondria is an organelle found in most eukaryotic cells. According to David
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