11 Digestion 1 Which one of the following structures is not part of the alimentary canal? (a) duodenum (c) liver (b) mouth (d) stomach: 2 Name two digestive glands. 3 What name is given to the muscular contraction which moves food along the alimentary canal? 4 What do digestive enzymes do to food? 5 What are the final digestion products of (a) protein‚ (b) fat‚ (c) starch? 6 How does chewing food help to speed up digestion? 7 Name the enzyme
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Biology Digestion IA 13/03/2013 Jason Gao Rationale: Digestion is the chemical breakdown of food into smaller components that are more easily absorbed. Digestion is a form of catabolism: a breakdown of large food molecules to smaller ones. When food enters into stomach‚ gastric juice starts protein digestion. Gastric juice mainly contains hydrochloric acid and pepsin. The pH value of hydrochloric in the stomach
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University of Phoenix Material Human Digestion Worksheet The Digestive System and its Functions Review the diagram located on p. 1. In the space provided below‚ write the name of each organ or part‚ and explain the function of each one as it relates to digestion and absorption. Explanations must be written as complete sentences. Please make sure that you identify each organ or part below with the corresponding number located in the diagram. DIGESTIVE ANATOMY FUNCTION 1 Mouth The mouth
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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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Human Digestion Activity The digestive process involves the mixing of food‚ the movement of food through the digestive tract‚ and a chemical breakdown of large molecules of food into smaller molecules. The digestive system is made up of the digestive tract and other organs that aid in digestion. The digestive tract is a series of hollow organs joined in a long‚ twisting tube from the mouth to the anus. Those twisted tubes include the mouth‚ esophagus‚ stomach‚ small and
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the color of the dorsal and ventral surfaces of the frog. __________ __________ __________________________________________________________________ __________ 7. How many digits are on each of the frog’s hands? _______________________ __________ 8. How many digits are on each of the frog’s feet? ___________________ ________________ 9. Is your frog male or female? How can you tell? ___________________ ________________ 10. Where is the tongue attached to the mouth? _________________________
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Does the amount of time that orange juice is swished in a human mouth affect the pH of the saliva‚ which could inhibit the digestion of the starches in the orange juice? Hypothesis: The longer 2 mL of orange juice is held in a test subject’s mouth‚ the greater the ability of the test subject’s saliva will become to break down starches. Dependent Variable: pH of the saliva. Independent Variable: time that the juice is swished in the mouth. Controlled Variables: Orange juice only. The
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FUNDAMENTALS OF HUMAN NUTRITION TOPIC: THE DIGESTION AND ABSORPTION OF FATS Final Presentation [pic][pic] Submitted to:- Miss Mehmoona Khalid Submitted By:- Sana Nadeem Arooj Khayyam Shaista Butt Affaf Rahman SEMESTER- II CONTENTS • Introduction of Digestion • Digestion of Triglycerides in GI Tract • In Mouth • In Oesophagus • In Stomach • In Small Intestine • Lipids
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Alloy - An alloy is a substance made by melting two or more elements together‚ at least one of them a metal. An Example: Examples of alloys include brass‚ bronze‚ 14k gold‚ and sterling silver. covalent bond - A covalent bond is a chemical link between two atoms in which electrons are shared between them. An Example: There is covalent between the oxygen and each hydrogen in (H 2 O). Each of the bonds contains two electrons - one from a hydrogen atom and one from the oxygen atom. Both atoms
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consist of large molecules of protein that must be digested by enzymes before they can be used to build and repair body tissues. An enzyme in the juice of the stomach starts the digestion. Further digestion
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