Digestion is the process in which the body breaks down food into particles that can be used for nourishment. The stomach is not the only organ involved in the digestion process. A series of organs comprise the human digestive tract‚ including the mouth‚ esophagus‚ stomach‚ small intestines‚ liver and large intestine. Each organ in the digestive tract plays an integral part in the digestive process. The food enters the mouth‚ where it is masticated and prepped for digestion. The mouth is comprised
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All Sugars are not Created Equal: The Effects of Glucose versus Fructose on the Human Body All Sugars Are Not Created Equal: The Effects of Glucose versus Fructose on the Human Body Sugar has occurred naturally in our environment since the dawn of time‚ and mankind has been enjoying its sweet taste almost that long. After all‚ glucose occurs naturally in corn‚ fructose is the natural sweetener found in fruit‚ sucrose occurs naturally in sugar beets and cane‚ and lactose is found in
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Human bioenergetics has dependably been an exceptionally intriguing‚ yet complex point. In any case‚ knowing the fundamentals on how our bodies create vitality can be exceptionally valuable when additionally talking about weakness. A basic thought to recollect is that muscle compression is because of a particle called ATP (adenosine triphosphate). ATP must be available for muscles to contract. There are three frameworks of energy that create ATP: Phosphocreatine system‚ the glycolytic system‚ or
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Anatomy and Physiology P5/M2 - Homeostasis Homeostasis is the need for an organism or a cell to regulate its internal environment (conditions within the fluid surrounding its body cells) by a system of feedback controls to stabilise health and functioning despite the outside changing conditions. This is important as this is what maintains and helps internal conditions (body temperature) to remain stable and constant. In humans homeostasis happens when the body regulates its body temperature in
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©2007‚ Biscontini: ”Alive & Well: Millennium Nutrition‚” VITAMINS‚ MINERALS AND THEIR FUNCTIONS TABLE ▲The nutrient and energy standards known as the RDA are currently being revised. The new recommendations are called Dietary Reference Intakes (DRI). The following chart provides the most updated goals for nutrient intake available for males and females between 31 - 50. For information about other ages‚ or special populations such as pregnancy or lactation‚ please go to www.nal.usda.gov. Nutrient
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Homeostasis literally means “same state” and it refers to the process of keeping the internal body environment in a steady state‚ when the external environment is changed. The importance of this cannot be over-stressed‚ as it allows enzymes etc to be ‘fine-tuned’ to a particular set of conditions‚ and so to operate more efficiently. Much of the hormone system and autonomic nervous systems is dedicated to homeostasis‚ and their action is coordinated by the hypothalamus. In Module 2 we saw how
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Cell structure and organization • Chloroplasts o Site of photosynthesis where light energy is absorbed o Consist of grana which are stacked up to increase surface area for absorption of light o Only present in plant cells • Cell membrane (plasma membrane) o Lipid bilayer that surrounds the cell‚ interspersed with protein molecule o Presence of temporary pores o Selectively permeable Controls movement of substances o Diffusion‚ osmosis and active transport can therefore take place o Prevent outflowing
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Cell injury In this topic we are going to cover Cell injury Causes of cell injury Mechanism of cell injury Morphologic alterations in cell injury Morphologic types of necrosis Objectives Describe cell injury List the causes of cell injury Discuss how depletion of ATP causes cell injury Describe how mitochondrial damage cause cell injury Explain the mechanism of cell injury by free radicals Discuss how calcium ion influx cause cell injury Cell injury cell injury results when cells
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is mostly preferred in the industry today. When the animals are slaughtered‚ “the glycogen in the muscle is transformed into lactic acid‚ which reduces enzyme activity‚ therefore the muscle and the carcass becomes firm. This lactic acid is essential to produce meat‚ which provides the taste‚ softness‚ good quality and colour.” (FAO‚ 2001) When the animals are stressed before and during slaughter‚ “the glycogen in the muscle is used up‚ and the lactic acid level in the meat is reduced‚ this will
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Compare/Contrast Macronutrients In today’s society everyone is looking for the next best thing‚ there are all kinds of fad diets out there that are consistently making outrageous promises to consumers. The latest in the fad diet trend is the “Low Carbohydrate/High Protein” diet. To break it down simply proteins are needed to help the body to grow and repair while carbohydrates provide energy. Both are needed in order for a person to remain healthy‚ which is why fad diets that promote one
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