EXPERIMENT NO. 12 DIGESTION IN THE STOMACH ABSTRACT____________________________________________________________________________ Digestion refers to the mechanical and chemical breakdown of food into smaller components that can undergo absorption. The objective of this experiment is to investigate mainly the process of digestion in the stomach. The conditions at which the enzymes responsible for the digestion process were determined. Also‚ the total and free acidity of gastric juice of the sample
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Human Digestion Shaunda SCI/241 05/16/14 Human Digestion From what I have learned from the weekly readings and watching the animated digestive tract. When humans digest food‚ we go through a complex process‚ in which the food eaten is turned into energy that is needed in order to survive. During the digestion process the food eaten becomes waste that has to be eliminated eventually. I will discuss how this process works in each area of mouth‚ stomach‚ small intestine
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The structure and function of carbohydrates A carbohydrate is an organic molecule containing only Carbon‚ Hydrogen and Oxygen with the general formula Cn(H20)n. They are made up of individual molecules called monomers which are joined together by condensation reactions to make a longer chain called a polymer. Carbohydrates are categorised in to three main groups; monosaccharides‚ disaccharides and polysaccharides. Monosaccharides are single sugars and are sweet tasting soluble substances such
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Define the following terms: Digestion: Digestion is the breakdown of large insoluble food substances in small and soluble one by means of mechanical and chemical actions. Peristalsis: It is a series of alternate contraction and relaxation of the circular and longitudinal muscles‚ producing a wave-like motion to move food down the oesophagus‚ from the mouth to the stomach. Emulsification: It is the hydrolysis of a few large fat globules into many small and soluble fat molecules. Transpiration:
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The digestion process The digestion process begins in the mouth. First we take a bite of food. The presccence of food in the mouth stimulates the flow of saliva from the salivary glands. Saliva moistens the food and carries dissolved food molecules to the taste buds. Saliva helps digest food because it contains enzymes that start to break it down. After the food is covered with saliva‚ you then begin to chew your food. Chewing breaks down food into smaller pieces and also breaks apart fiber that
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Fermentation of Carbohydrates: Ethanol from Sucrose Objective: To demonstrate a fermentation process‚ isolate the ethanol produced by fractional distillation‚ determine the composition of the ethanol solution recovered‚ and make stoichiometric and yield calculations. Procedures: Fermentation Weigh out 20.0 g of sucrose and place it into a 250-mL Erlenmeyer flask. Add 100 mL of water and gently shake until all the sucrose has dissolved. To this solution add 0.60 g of dipotassium hydrogen phosphate
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LAB 2 1.Identify the functional group or molecule for each of the following. (3 points) a.COOH temp b.COH temp c.COH temp 2.List whether each of the following substances was positive or negative for reducing sugar‚ as indicated by the Benedict’s test. (6 points) a.corn syrup (1 point) b.table sugar (1 point) c.unknown 1 (1 point) d.unknown 2 (1 point) e.unknown 3 (1 point) f.unknown 4 (1 point) 3.List whether each of the following substances was positive or negative for starch‚ as
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Types of Variables Binary variable Obsevations (i.e.‚ dependent variables) that occur in one of two possible states‚ often labelled zero and one. E.g.‚ “improved/not improved” and “completed task/failed to complete task.” Categorical Variable Usually an independent or predictor variable that contains values indicating membership in one of several possible categories. E.g.‚ gender (male or female)‚ marital status (married‚ single‚ divorced‚ widowed). The categories are often assigned numerical
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human digestive system. (Total 4 marks) 3. Describe the role of enzymes in the process of digestion of proteins‚ carbohydrates and lipids in humans. (Total 6 marks) 4. Draw a labelled diagram of the digestive system. (Total 5 marks) 5. State the sources‚ substrate‚ product‚ and optimum pH conditions for the enzyme amylase. (Total 4 marks) 6. Describe the role of enzymes in digestion with reference to two named examples. (Total 5 marks) 7. What sequence of organs do substances
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Variables 1 Corporate variables ADD1 -- Address Line 1 ADD2 -- Address Line 2 ADD3 -- Address Line 3 ADD4 -- Address Line 4 ADDZIP -- Postal Code BUSDESC -- S&P Business Description CITY -- City CONML -- Company Legal Name COUNTY -- County Code DLRSN -- Research Co Reason for Deletion EIN -- Employer Identification Number FAX -- Fax Number FYRC -- Current Fiscal Year End Month GGROUP -- GIC Groups GIND -- GIC Industries GSECTOR -- GIC Sectors GSUBIND -- GIC
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