presence of macromolecules. In doing the lab‚ one was able to determine the characteristics of the given solutions‚ containing different macromolecules‚ whilst doing the multiple tests. The tests performed were‚ iodine testing for starch and glycogen‚ Benedict’s test for reducing sugars‚ and the Biuret’s test for protein. Depending on the test performed‚ certain results acquired‚ clearly identified the macromolecules present in each solution. With the aid of the results from the lab‚ the unknown
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Biochemistry of Muscle Contraction Fred P. Guillergan M.D.‚ FPCP Outline histology and biochemistry of muscles (Striated & smooth) – Myosin – Actin‚ Tropomyosin‚ Troponin – Accessory proteins of muscles Biochemical events in muscle contraction Calcium‚ Ca2+-binding proteins and Ca2+ channels in muscle contraction Biochemistry of Cardiac & Smooth muscle contraction Energetics of muscle contraction ☻Able to understand the normal anatomy and physiology of different types of muscles
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body has gone from using carbohydrates as its source of fuel to fats-almost exclusively. But it’s a little more involved than that. Ketosis starts when there aren’t enough carbohydrates in the blood stream to refill glycogen stores in your liver. What is glycogen? The liver makes glycogen from carbohydrates as a kind of quick food source for the body. A lack of carbohydrates means the body needs an alternate food source. So the body uses fat‚
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* In Aerobic glycolysis‚ glucose or glycogen is broken down to pyruvic acid via glycolitic enzymes during carbohydrate metabolism. Hydrogen is released and glucose is metabolized to pyruvic acid. In the presence of oxygen‚ the pyruvic acid is converted into acetyl coenzyme A. (Acetyl CoA). 1 mole of glucose produce 2 moles of ATP or 1 mole of glycogen produces 3 moles of ATP. * In the Kreb Cycle system‚ once the acetyl CoA is formed‚ it enters
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In the lab‚ three experiments were completed: the Iodine experiment‚ Benedict’s experiment and the Biuret experiment to test for starch and glycogen‚ reducing sugars and protein in the respective order. 12 solutions were given where 11 were known and the 12th was an unknown. The solutions that were supplied can be found in the results and observations section of this report. When completing such experiments‚ there are always controls used to make sure the procedure is followed and that no cross
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cells can’t use it. But they can use its component sugars‚ glucose and galactose. These give you a source of immediate energy‚ just as table sugar and starch do. Your cells can also convert the components of lactose into the storage carbohydrate glycogen‚ which provides a supply of sugar for periods of fasting‚ Drs. Reginald Garrett and Charles Grisham expalin in their book "Biochemistry." You can also convert the sugars into fat Maltose A type of carbohydrate. Carbohydrates are one of the
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Muscle adaptations to the increase in energy demands at the start of exercise Introduction The transition from rest to exercise is associated with a huge upsurge in energy expenditure‚ due primarily to skeletal muscle contractions (Connett & Sahlin‚ 1996). Contractions require energy in the form of adenosine tri-phosphate (ATP). ATP stores in muscle are around 8mmol/l and are exhausted within 2s of exercise (Connett & Sahlin‚ 1996). To continue exercise and maintain ATP homeostasis‚ ATP
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and fat tissue to absorb glucose from your blood and store it as glycogen for future energy needs. Glucose is a form of sugar used by your body for energy‚ and is derived from the consumption of carbohydrates (e.g. starch). So you eat a donut‚ your body breaks it down‚ glucose is released into your blood‚ insulin is released as a reaction‚ and triggers your liver‚ muscles and fatty tissue to absorb this donut-derived glucose as glycogen for use down the road when you need it. So the
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whether it is weight loss or body building. During certain routing exercise training the body breaks down the glycogen. Primarily‚ glycogen is a sugar molecules from the food we eat and protein as well as fat too. Glycogen is the most available and willing to fuel our body the energy that we need to perform the exercise effectively. When our training exercise increases‚ the level of glycogen lessens dramatically and our body switches to fat and protein to fuel us with energy. As a result‚ we can break
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Easier to digest because they can’t stack in a linear fashion like amylose • Resistant starch= comprised of more amylose chains making them harder to digest • Unripe bananas‚ beans‚ pasta‚ raw potatoes Similar to amylopectin Polysaccharides: Glycogen • Storage form of glucose in animals • Found in liver and muscle cells only • Similar to amylopectin • No significant source in animal proteins after they die due to rapid breakdown • Limited storage capacity Polysaccharides: Fiber • Found in
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