Importance of Nutrient Carbohydrate - PDF
Added on 2020-11-12
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NUTRITION
TABLE OF CONTENTSNUTRITION....................................................................................................................................1INTRODUCTION...........................................................................................................................3PART A...........................................................................................................................................31. Role of Carbohydrate in body............................................................................................3i ) Chemical structure of carbohydrate...................................................................................3ii) Digestion and metabolism of carbohydrate.......................................................................4iii) Role of carbohydrate in body............................................................................................4iv) Suggested dietary intake targets for carbohydrate............................................................5v) Food sources that provide carbohydrate............................................................................52. Analysis of articles on the basis of nutritional information.............................................5PART B............................................................................................................................................7a) 24-hour food record for adult 25-year-old woman.............................................................7CONCLUSION..............................................................................................................................11REFERENCES (APA)...................................................................................................................12
INTRODUCTIONNutrition is the science which denotes interaction of nutrients and other substances in food which supports human body in growth,reproduction, health, growth and disease of an organism. There are three types of nutrition that is fat, carbohydrate and protein. Thepresent study is based on specific nutrient that is carbohydrate (Jeukendrup and Gleeson, 2018). Carbohydrate is a bio-molecule whichconsist of hydrogen, oxygen atoms and carbon. The assignment will outline chemical structure, metabolism, digestion ofcarbohydrate. Further, it will discuss role of chosen nutrient in body and sources that are rich in carbohydrate.PART A 1. Role of Carbohydrate in bodyCarbohydrate act as fuel to human body which is found in grains like, breakfast cereal, bread, pasta, rice, cous, potato, fruit, etc.Human muscles and brain use of carbs nutrient as a source of energy (Carbohydrates – what you need to know, 2019). One factoutlined by Accredited practicing Dieticians is that selection of quality carbohydrate food depends on how slowly and quickly carbsbreakdown in the body. The primary function of carbohydrate is to provide energy to body. The most nutrient consumed by anindividual are in food which are digested and are broken down into glucose before entering into blood stream (Carbohydrates and theglycaemic index, 2018).i ) Chemical structure of carbohydrateChemical structure of carbohydrate is (CH2O)n, in this n stands for number of carbons in molecule and this structure is formedwith the help of Stoichiometric formula. In accordance with this carbohydrate are classified into three types that is polysaccharides,disaccharides and monosaccharides (Leslie, 2018). The mono saccharides are the simplest among them and are often called singlesugars. They are the types of building blocks in which from which bigger carbohydrates are being made. The disaccharides are the ones which are found the most sugars. These types of carbohydrate form when two different types ofmonosaccharides react. The three most important disaccharides are the ones which includes maltose, sucrose and lactose.
The polysaccharides are the ones which undergoes a series of reaction while being in condensation reactions. This process isknown as condensation polymerization reaction. These building blocks are also known as monomers which explains that theproperties of the molecule polysaccharide depend on its length, its extent of the branching, a folding which results in a molecule whichis more compact and if the chain is coiled or straight. ii) Digestion and metabolism of carbohydrateThe digestion of the carbohydrate begins in the mouth. The action of food chewing tends to stimulate the saliva's flow andwithin the saliva the enzyme which is amylase tends to start the process of breaking down the carbohydrates. The digestion of thenutrient in the mouth is minor and as it does not remain in the mouth for a very long time. In the digestive tract the actions of swallowing and chewing takes place. It ensures that the food while being chewed andswallowed is releasing the stomach acid which is continuing to break down the carbohydrate. Once the carbohydrate arrived in thesmall intestine, more enzymes tends to be released in order to further break them down into molecules of glucose. Its rate of digestion and absorption impacts carbohydrate metabolism. The rapid breakdown of the nutrient tends to create anoverload of the glucose in the bloodstream. The pancreas tends to respond by pumping the insulin in order to quickly lower the bloodsugar. iii) Role of carbohydrate in bodyIn the human body the main function of the carbohydrate is to provide required energy to the body. They also play animportant role as in both the functioning and structure of the cells, organs and tissues as well as the formation of carbohydrate on thesurface of cells. It is one of the most essential and required food for the human body as it ensures that the human body is gainingrequired energy from the set source.
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