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Transcript of Body Systems
What is the path of a carbohydrate as it passes through the disgestive system and is absorbed into your body? Carbohydrates are vital to the body. They are foods rich in sugars. They are an energy source, therefore we must eat carbohydrates to funtion, let alone maintain a healthy diet. There are two types of carbohyrates. Simple and complex. Simple carbohydrates are made of one sugar whereas complex are made from more than one type of sugar. Some types of simple carbohydrates are sucrose (white sugar), glucose (corn sugar), fructose (fruit sugar) and maltose (found in beer). Complex carbohydrates are made of more than one type of sugar. The body breaks down different carbohydrates differently. Complex carbohydrates take longer to digest than simple carbohydrates. http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP15806 Complex Carbohydrates need enzymes to break
them into simple carbohydrates. The enzymes break bonds and release energy.
This process begins in the mouth. Firstly, The food is broken down in the mouth by chewing and chemical reactions with salivary juices, So, What are Carbohydrates? After being chewed to pieces, the food is swallowed down the oesophagus smaller to the stomach Carbohydrates are not affected by chemical reactions here because the actions of the salivary juices are stopped by acidic secreations in the stomach. The food mixture is known as
once it enters the stomach. Chyme The chyme enters the beginning of the small intestine, the Duodenum. In response to the presence of carbohydrates, the pancreas releases pancreatic amylase, which continues breaking down the carbohydrates. But how did the pancreas know there were carbohydrates in the chyme in the duodenum? When the chyme enters the small intestines, enteroendocrine cells activate and release cholecystokinin. The cholecystokinin hormone tells the pancreas to release the pancreatic amylase. In the small intestines, enzymes called maltase, lactase and sucrase work to break down the crabohydrates further. The liver absorbs the broken down products of the carbohydrates. finally, the energy can be used! (cc) photo by theaucitron on Flickr WHat is the energy used for? For new cell parts Cells use the energy ...or the cell may use the energy to create products to be used either by the cell, or used elsewhere ...or for muscle contraction The Process of Carbohydrate Digestion Special Thanks to Laura Aitken for help with using Prezi. http://www.fao.org/docrep/W8079E/w8079e0k.htm http://www.carbs-information.com/digestion-of-carbs.htm http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1176254/ http://hpylorisymptoms.org/digestion-of-carbohydrates/ Thank you by the way, tash is cooler than laura...