The Digestive System Of A Simple Meal Of Baked Potato And Cheddar Cheese
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This essay is going to examine the human digestive system from beginning to end and discuss the digestive process of a simple meal of baked potato and cheddar cheese including the food groups it is made up of, how the body breaks the food down and how it is absorbed and subsequently assimilated. This will be achieved by analysing a range of scientific sources in order to gain full understanding of the human body and the way the digestive system works.
The digestive system is also known as the alimentary canal and is a vast system that is approximately ten meters long. The process of digestion can simply be described as the breaking down of large organic molecules obtained from foods such as carbohydrates, fats and proteins into smaller…show more content… There is also intracellular digestion and extracellular digestion. Intracellular digestion is the breaking down of the interior of large molecule cells ingested or even from its own cell metabolism into smaller molecules. Products of intracellular digestion are then used by the cell or excreted. Extracellular digestion is when food breaks down into utile molecules that are then internalised by cells. This is done in the extracellular space where cells secrete substances that break large molecules into smaller molecules in the external environment, later the cell can benefit from the products of digestion. For the purpose of discussing the digestion of a baked potato and cheddar cheese, intracellular and extracellular digestion is not relevant. (biology-questions-answers, 2013. online)
A baked potato and cheddar cheese can be broken down into many food groups that are essential to the human body. Potatoes, when baked in their skins provide a range of nutrients including carbohydrate. (livestrong, 2014. online) Cheddar cheese is a dairy product that provides nutrients including fat, and protein. (healthyeating, 2014. online) The process of digestion of this meal would begin mechanically in the oral cavity (the mouth). The oral cavity is bound by