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Ib biology study guide digestion of proteins

 
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MessagePosté le: Sam 17 Mar - 05:35 (2018)    Sujet du message: Ib biology study guide digestion of proteins Répondre en citant

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Digestive system structure. The digestive system (7 meters of it!!) converts large polymers into smaller monomers that can be absorbed into the blood stream and transported to cells where the monomers are needed for anabolic (build proteins/triglcerides/phospholipids/DNA etc) and catabolic (e.g. respiration) reactions in
Secretes HCL which kills bacteria. HCL provides optimum pH for pepsin. Secretes pepsin for protein digestion. Small intestine: Intestinal wall secretes enzymes; Receives enzymes from the pancreas. Has villi for absorption of food particles. Large intestine: Moves material that has not been digested along. Absorbes water.
23 Apr 2010 </li></ul><ul><li>This emulsification has two effects: </li></ul><ul><li>1.Increases the surface area of the lipid for the digestion of fat </li></ul><ul><li>2.Exposes the glycerol 'head' structure to the enzyme </li></ul><ul><li>• Action: hydrolysis of ester bonds between the glycerol molecules and the fatty acid
This lesson begins with an experiment to model the hydrolysis of starch by amylase and the absorption of simple sugars using visking tubing. While students wait for diffusion there is an activity to use a textbook, Biodigital human or Zygote body as a research tool to answer some simple questions about the digestive system.
Previous IB Exam Essay Questions: Unit 13. Use these model essay questions and responses to prepare for essay questions on your in-class tests, as well as the IB Examination, Paper 2. The questions below have Describe the role of enzymes in the digestion of proteins, carbohydrates and lipids in humans. 6 marks SL.
Stomach. • A temporary storage tank where food is mixed by churning and protein digestion begins. • It is lined by gastric pits that release digestive juices, which create an acidic environment (pH ~2). small intestine icon. Small Intestine. • A long, highly folded tube where usable food substances (nutrients) are absorbed.
digestion-Questions-Ib-TEST.pdf - Free download as PDF File (.pdf), Text File (.txt) or read online for free. IB DIPLOMA BIOLOGY PAST PAPER QUESTIONS B. lipids proteins. C. carbohydrates lipids. D. proteins lipids (Total 1 mark) 4. Two cellular activities that support human life are absorption and assimilation. What is
Using the 2007 IB biology syllabus from the IBO, and the Oxford IB study guide "Biology for the IB diploma" published in 2012. Enzymes are essential to speed up the process so that the rate of digestion at body temperature is sufficient for survival. Digestion of proteins begins in the stomach, catalysed by pepsin.
The stomach acts as a temporary storage tank and is where protein digestion begins; The stomach contains gastric glands which secrete digestive juices for chemical digestion; Acids create a low pH environment (pH~1-2) that denatures proteins, while proteases like pepsin hydrolyse large proteins; The stomach also
14 Feb 2018 Read our complete set of IB Biology notes and our free study guide to the best resources available. In this article, I've compiled the best FREE online IB Biology study guides (including IB Biology Notes and IB Biology Revision) into one useable resource and provided you . 6.1 Digestion and absorption.

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