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biochemistry </a></li><li><a href="../19287/proteins-enzymes--1.html">Proteins & enzymes </a></li><li class="selected"><a href="lipids-1.html">Lipids</a></li><li><a href="../19299/carbohydrates--1.html">Carbohydrates </a></li><li><a href="../19305/vitamins--1.html">Vitamins </a></li><li><a href="../19313/biochemistry-the-environment--1.html">Biochemistry & the environment </a></li><li><a href="../19336/proteins-enzymes-ahl--1.html">Proteins & enzymes (AHL) </a></li><li><a href="../19347/nucleic-acids--1.html">Nucleic acids </a></li><li><a href="../19361/biological-pigments--1.html">Biological pigments </a></li><li><a href="../19366/stereochemistry-in-biomolecules-1.html">Stereochemistry in biomolecules</a></li></ul></li><li><a href="../19390/option-c--1.html" class="father">Option C </a><ul class="level-2"><li><a href="../19391/energy-sources-1.html">Energy sources</a></li><li><a href="../19407/fossil-fuels-1.html">Fossil fuels</a></li><li><a href="../19411/nuclear-fusion-nuclear-fission-reactions-1.html">Nuclear fusion & nuclear fission reactions</a></li><li><a href="../19429/solar-energy-1.html">Solar energy</a></li><li><a href="../19437/environmental-impact-global-warming-1.html">Environmental impact - global warming</a></li><li><a href="../19453/electrochemistry-rechargeable-batteries-fuel-cells-1.html">Electrochemistry, rechargeable batteries & fuel cells</a></li><li><a href="../19458/nuclear-fusion-fission-hl--1.html">Nuclear fusion & fission (HL) </a></li><li><a href="../19470/photovoltaic-cells-and-dsscs-1.html">Photovoltaic cells and DSSCs</a></li></ul></li><li><a href="../19078/option-d-1.html" class="father">Option D</a><ul class="level-2"><li><a href="../19079/pharmaceutical-products-drug-action--1.html">Pharmaceutical products & drug action </a></li><li><a href="../19158/aspirin-penicillin--1.html">Aspirin & penicillin </a></li><li><a href="../19174/opiates-1.html">Opiates</a></li><li><a href="../19184/ph-regulation-of-the-stomach-1.html">pH regulation of the stomach</a></li><li><a href="../19194/antiviral-medications--1.html">Antiviral medications </a></li><li><a href="../19211/environmental-impact-of-some-medications-1.html">Environmental impact of some medications</a></li><li><a href="../19254/taxol-a-chiral-auxiliary-case-study-1.html">Taxol - a chiral auxiliary case study</a></li><li><a href="../19258/nuclear-medicine--1.html">Nuclear medicine </a></li><li><a href="../19273/drug-detection-analysis--1.html">Drug detection & analysis </a></li></ul></li></ul></li><li><a href="../16592/practical-scheme-of-work-ia--1.html">Practical scheme of work & IA </a><ul class="level-1"><li><a href="../16682/internal-assessment-1.html" class="father">Internal Assessment</a><ul class="level-2"><li><a href="../18892/scaffolding-the-investigation-1.html">'Scaffolding' the investigation</a></li><li><a href="../18896/timing-organisation--1.html">Timing & organisation </a></li><li><a href="../18905/choosing-the-research-question-1.html">Choosing the research question</a></li><li><a href="../18946/personal-engagement-1.html">Personal engagement</a></li><li><a href="../18950/exploration-1.html">Exploration</a></li><li><a href="../18957/analysis-1.html">Analysis</a></li><li><a href="../18965/evaluation-1.html">Evaluation</a></li><li><a href="../18966/communication-1.html">Communication</a></li><li><a href="../19882/internal-standardization-of-the-ia-1.html">Internal standardization of the IA</a></li><li><a href="../19901/submitting-the-samples-for-moderation-2.html">Submitting the samples for moderation</a></li><li><a href="../33754/ten-suggestions-for-ias-using-secondary-data-1.html">Ten suggestions for IAs using secondary data</a></li><li><a href="../37544/gaining-full-marks-for-a-databased-ia--1.html">Gaining full marks for a databased IA </a></li><li><a href="../19506/ia-example-marking-exercise--1.html">IA example & marking exercise </a></li><li><a href="../23929/genuine-examples-of-moderated-ia-reports-1.html">Genuine examples of moderated IA reports</a></li><li><a href="../25234/examples-of-teacher-marked-ia-reports--1.html">Examples of teacher-marked IA reports </a></li><li><a href="../37542/history-of-internal-assessment-1.html">History of Internal Assessment</a></li></ul></li><li><a href="../16598/mandatory-laboratory-components-1.html" class="father">Mandatory laboratory components</a><ul class="level-2"><li><a href="../16613/formula-of-magnesium-oxide--1.html">Formula of magnesium oxide </a></li><li><a href="../16612/determining-the-mr-of-an-unknown-gas-1.html">Determining the <i>M</i><sub>r</sub> of an unknown gas</a></li><li><a href="../16615/acid-base-titrations--1.html">Acid-base titrations </a></li><li><a href="../16616/a-green-acid-base-practical-1.html">A green acid-base practical</a></li><li><a href="../16617/analysis-of-aspirin-tablets-1.html">Analysis of aspirin tablets</a></li><li><a href="../16618/caco3-in-egg-shells-1.html">CaCO<sub>3</sub> in egg shells</a></li><li><a href="../16644/enthalpy-changes-1.html">Enthalpy changes</a></li><li><a href="../16631/reaction-rates-1.html">Reaction rates</a></li><li><a href="../16635/rate-dependent-factors-1.html">Rate-dependent factors</a></li><li><a href="../16636/determining-ea-for-a-reaction-1.html">Determining <i>E</i><sub>a</sub> for a reaction</a></li><li><a href="../16637/iodination-of-propanone-1.html">Iodination of propanone</a></li><li><a href="../18144/titrations-with-a-ph-meter-1.html">Titrations with a pH meter</a></li><li><a href="../18355/redox-titration-with-kmno4--1.html">Redox titration with KMnO<sub>4</sub> </a></li><li><a href="../16640/voltaic-cells-1.html">Voltaic cells</a></li><li><a href="../16659/3-d-molecular-modelling--1.html">3-D molecular modelling </a></li></ul></li><li><a href="../17168/other-good-practicals-1.html" class="father">Other good practicals</a><ul class="level-2"><li><a href="../17196/common-chemical-reactions-1.html">Common chemical reactions</a></li><li><a href="../227/elements-oxides-of-the-third-period--1.html">Elements & oxides of the third period </a></li><li><a href="../17239/the-halogens-1.html">The halogens</a></li><li><a href="../17162/boiling-points-of-mixtures-1.html">Boiling points of mixtures</a></li><li><a href="../17170/polarity-of-molecules-1.html">Polarity of molecules</a></li><li><a href="../18083/le-chateliers-principle--1.html">Le Chatelier's principle </a></li><li><a href="../19582/determining-kc-for-an-esterification-reaction-1.html">Determining <i>K</i><sub>c</sub> for an esterification reaction</a></li><li><a href="../18164/redox-reactions-of-vanadium--1.html">Redox reactions of vanadium </a></li><li><a href="../18351/chlorine-in-swimming-pools--1.html">Chlorine in swimming pools </a></li><li><a href="../18178/analysis-of-cuii-ions-in-solution--1.html">Analysis of Cu(II) ions in solution </a></li><li><a href="../18179/percentage-of-copper-in-brass-1.html">Percentage of copper in brass</a></li><li><a href="../18356/electrolytic-cells--1.html">Electrolytic cells </a></li><li><a href="../18598/reactions-of-organic-compounds-1.html">Reactions of organic compounds</a></li><li><a href="../18752/hydrolysis-of-halogenoalkanes-1.html">Hydrolysis of halogenoalkanes</a></li><li><a href="../18784/preparation-of-13-dinitrobenzene--1.html">Preparation of 1,3-dinitrobenzene </a></li><li><a href="../19022/determination-of-an-organic-structure-1.html">Determination of an organic structure</a></li><li><a href="../19887/preparation-of-nylon-66-1.html">Preparation of nylon 6,6</a></li><li><a href="../19343/determination-of-vitamin-c-content--1.html">Determination of vitamin C content </a></li><li><a href="../19342/hydrolysis-of-starch--1.html">Hydrolysis of starch </a></li><li><a href="../19159/preparation-purification-of-aspirin--1.html">Preparation & purification of aspirin </a></li></ul></li><li><a href="../18851/ict-in-practical-work-1.html" class="father">ICT in practical work</a><ul class="level-2"><li><a href="../18852/data-logging--1.html">Data logging </a></li><li><a href="../18853/software-for-graph-plotting--1.html">Software for graph plotting </a></li><li><a href="../18854/spreadsheets-for-data-processing--1.html">Spreadsheets for data processing </a></li><li><a href="../18855/databases-1.html">Databases</a></li><li><a href="../18856/computer-modelling-simulations--1.html">Computer modelling & simulations </a></li></ul></li><li><a href="../16594/group-4-project-1.html" class="father">Group 4 Project</a><ul class="level-2"><li><a href="../16595/practicalities-1.html">Practicalities</a></li><li><a href="../16596/reflective-statement--2.html">Reflective statement </a></li></ul></li><li><a href="../16666/a-new-laboratory-1.html">A new laboratory?</a></li></ul></li><li><a href="../16284/exams-1.html">Exams</a><ul class="level-1"><li><a href="../16286/essential-facts-1.html" class="father">Essential Facts</a><ul class="level-2"><li><a href="../16287/objectives-command-terms-1.html">Objectives & command terms</a></li><li><a href="../16288/grade-descriptors-1.html">Grade descriptors</a></li><li><a href="../16289/grade-boundaries-1.html">Grade boundaries</a></li></ul></li><li><a href="../16302/paper-1-multiple-choice-1.html" class="father">Paper 1 (Multiple Choice)</a><ul class="level-2"><li><a href="../16303/advice-to-students-paper-1-1.html">Advice to students (Paper 1)</a></li><li><a href="../31515/practice-paper-1-exams-1.html">Practice Paper 1 exams</a></li></ul></li><li><a href="../16305/paper-2-1.html" class="father">Paper 2</a><ul class="level-2"><li><a href="../16306/advice-to-students-paper-2-1.html">Advice to students (Paper 2)</a></li><li><a href="../16307/areas-of-difficulty-1.html">Areas of difficulty</a></li></ul></li><li><a href="../16313/paper-3--1.html" class="father">Paper 3 </a><ul class="level-2"><li><a 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href="../16323/retaking-the-exam-1.html">Retaking the exam</a></li></ul></li><li><a href="../16325/faqs-1.html">FAQs</a></li></ul></li><li><a href="../3147/ib-core-1.html">IB Core</a><ul class="level-1"><li><a href="../3149/learner-profile-1.html">Learner Profile</a></li><li><a href="../21735/extended-essays--1.html" class="father">Extended Essays </a><ul class="level-2"><li><a href="../21736/overview--1.html">Overview </a></li><li><a href="../21780/responsibilities-1.html">Responsibilities</a></li><li><a href="../21790/resources-1.html">Resources</a></li><li><a href="../21800/research-1.html">Research</a></li><li><a href="../21804/writing-the-essay-1.html">Writing the essay</a></li><li><a href="../21810/assessment-1.html">Assessment</a></li><li><a href="../22434/summary-of-advice--1.html">Summary of advice </a></li><li><a href="../25272/faqs--1.html">FAQs </a></li></ul></li><li><a href="../307/theory-of-knowledge-tok-1.html" class="father">Theory of Knowledge (TOK)</a><ul class="level-2"><li><a href="../41171/the-12-tok-concepts-1.html">The 12 TOK concepts</a></li><li><a href="../3507/why-tok-chemistry-1.html">Why TOK & Chemistry?</a></li><li><a href="../3505/a-modern-paradigm-1.html">A modern paradigm</a></li></ul></li></ul></li><li><a href="../17783/fast-track-to-tests-questions-1.html">Fast track to tests & questions</a><ul class="level-1"><li><a href="../17784/sl-multiple-choice-tests-on-individual-topics-1.html">SL Multiple choice tests on individual topics</a></li><li><a href="../24351/sl-multiple-choice-quizzes-on-sub-topics-1.html">SL Multiple choice 'quizzes' on sub-topics</a></li><li><a href="../31519/sl-practice-paper-1-exams-1.html">SL Practice Paper 1 exams</a></li><li><a href="../17786/sl-questions-on-each-sub-topic-1.html">SL Questions on each sub-topic</a></li><li><a href="../20431/sl-paper-3-section-a-questions-1.html">SL Paper 3 Section A questions</a></li><li><a href="../17792/sl-questions-on-the-options-1.html">SL Questions on the options</a></li><li><a href="../24897/sl-quizzes-on-option-sub-topics--1.html">SL Quizzes on option sub-topics </a></li><li><a href="../17785/hl-multiple-choice-tests-on-individual-topics-1.html">HL Multiple choice tests on individual topics</a></li><li><a href="../24352/hl-multiple-choice-quizzes-on-sub-topics-1.html">HL Multiple choice 'quizzes' on sub-topics</a></li><li><a href="../31520/hl-practice-paper-1-exams--1.html">HL Practice Paper 1 exams </a></li><li><a href="../17787/hl-questions-on-each-sub-topic--1.html">HL Questions on each sub-topic </a></li><li><a href="../20428/hl-paper-3-section-a-questions-1.html">HL Paper 3 Section A questions</a></li><li><a href="../17793/hl-questions-on-the-options-1.html">HL Questions on the options</a></li><li><a href="../24973/hl-quizzes-on-option-sub-topics-1.html">HL Quizzes on option sub-topics</a></li><li><a href="../41573/printable-versions-of-written-tasks--1.html">Printable versions of written tasks </a></li></ul></li><li><a 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</div><section id="main-content"><div id="toc-1672969671" class="toc"><a href="#" class="toc-switcher" title="Show table of contents"><small><i class="fa fa-reorder"></i> Table of contents <span class="pull-right"><i class="fa fa-chevron-down"></i></span></small></a></div><h1><img class="ico" src="../../../img/icons/standard-1.png"> <img class="ico" src="../../../img/icons/higher-1.png"> B.3 Lipids (5 hours)</h1><div class="pinkBg"><div><h2>Pause for thought</h2><p><strong>Are saturated fats bad for your heath?</strong></p><p style="text-align: center;"><strong><img alt="" class="noborder" src="../../../ib/chemistry/images/2014-Options/Option-B/sausages.jpg" style="width: 400px; height: 225px;"></strong></p><p>There is real scope for both Nature of Science and Theory of Knowledge in discussing the question, ‘Are saturated fats bad for you?’ For the past forty years the advice from governments and reputable medical bodies has been to consume unsaturated fats rather than saturated fats, as saturated fats lead to heart disease. Even the Nature of Science statement as written in the Guide for this sub-topic states, “Long–term studies have led to knowledge of the negative effects of diets high in saturated fats”.</p><p>The advice was based initially on the evidence of work published in 1958 by Ancel Keys in the <a href="http://sevencountriesstudy.com/about-the-study/investigators/ancel-keys">Seven Countries Study</a>. It found a correlation between saturated fat intake and heart disease. There is now <a href="http://en.wikipedia.org/wiki/Seven_Countries_Study">considerable doubt about these findings</a>. Some people claim that in fact twenty-two countries were studied and all the results that did not fit the correlation were ignored. Many studies during the past fifty years have come up with conflicting views and yet the mantra that saturated fats are ‘bad’ for you has persisted.<br><br>Several recent meta studies have cast serious doubt on whether saturated fats are bad for you. In <a href="http://annals.org/article.aspx?articleid=1846638">2014 a meta study of 72 published papers</a> involving more than 600,000 participants worldwide produced the conclusion:</p><p style="margin-left: 40px;">“Current evidence does not clearly support cardiovascular guidelines that encourage high consumption of polyunsaturated fatty acids and low consumption of total saturated fats.”</p><p>A similar meta-study <a href="http://openheart.bmj.com/content/2/1/e000196">published in Open Heart</a>, produced by the British Cardiovascular Society, looking at reports of trials before 1983 concludes:</p><p style="margin-left: 40px;">"Dietary recommendations were introduced for 220 million US and 56 million UK citizens by 1983, in the absence of supporting evidence from RCTs (randomized controlled trials).</p><p>The debate continues!</p><hr class="hidden"></div></div><hr class="hidden"><div class="box"><h2>Nature of Science</h2><p>Long-term studies have led people to believe that diets high in saturated fat, cholesterol, and trans-fat have negative effects. This has led to the development of new food products.</p><hr class="hidden"></div><hr class="hidden"><div class="box"><table align="left" border="0" cellpadding="10" cellspacing="0"><tbody><tr><td style="width: 50%;" valign="top"><h3><b><span style="font-weight: normal; "></span></b></h3><div class="yellowBg"><div><h2><b><span style="font-weight: normal; "><strong>Learning outcomes</strong></span></b></h2><p>After studying this topic students should be able to:</p><p><strong>Understand:</strong></p><ul><li>Fats, which are more reduced, produce more energy than carbohydrates when they are oxidized.</li><li>Triglycerides contain ester links and are formed by the condensation reaction between glycerol and three fatty acids.</li><li>Fatty acids can be saturated, monounsaturated or polyunsaturated.</li><li>Phospholipids are derived from triglycerides.</li><li>The hydrolysis of triglycerides and phospholipids can occur in alkaline or acidic conditions or by using enzymes.</li><li>Steroids possess a characteristic fused 4-membered ring structure, known as a steroidal backbone.</li><li>The role of lipids includes acting as structural components of cell membranes, as transporters of lipid soluble vitamins, as hormones and in energy storage and thermal and electrical insulation.</li></ul><hr class="hidden"><p><strong>Apply their knowledge to:</strong></p><ul><li>Deduce the structural formulas of reactants and products in condensation and hydrolysis reactions between glycerol and fatty acids and/or phosphate.</li><li>Predict the relative melting points of fats and oils from their structures.</li><li>Compare the processes of hydrolytic and oxidative rancidity in fats with respect to the site of reactivity in the molecules and the conditions that favour the reaction.</li><li>Apply the concept of iodine number to determine the unsaturation of a fat.</li><li>Compare carbohydrates with lipids as energy storage molecules with respect to their solubility and energy density.</li><li>Discuss the impact of lipids on health, including the roles of dietary high-density lipoprotein, HDL, and low-density lipoprotein, LDL, cholesterol, saturated, unsaturated and <em>trans-</em>fat and the use and abuse of steroids.</li></ul></div></div></td><td style="width: 50%;" valign="top"><h4><b><span style="font-weight: normal;"></span></b></h4><div class="yellowBg"><div><h4><b><span style="font-weight: normal;"><strong>Clarification notes</strong></span></b></h4><p>The structures of some fatty acids can be found in Section 34 of the data booklet.</p><hr class="hidden"><p>The names of specific examples of fats and oils do not have to be learned.</p><hr class="hidden"><p>The structural differences between <em>cis-</em> and <em>trans-</em>fats are not required.</p><hr class="hidden"><h4>International-mindedness</h4><p>The dietary sources of lipids and the methods used to prevent rancidity vary greatly between countries and cultures</p></div></div></td></tr></tbody></table></div><hr class="hidden"><div class="box"><table align="left" border="0" cellpadding="10" cellspacing="0"><tbody><tr><td style="width: 50%;" valign="top"><h2><span style=""><b><span style="font-weight: normal;"><strong>Teaching tips</strong></span></b></span></h2><p>The most essential thing is for students to be able to construct the structure of a fat or oil formed from the condensation reaction between glycerol (propane-1,2-3-triol) and fatty acids and carry out the reverse hydrolysis reaction.</p><p>The properties of the fat or oil will depend upon the amount of unsaturation in the three fatty acids making up the triglyceride. The degree of unsaturation can easily be determined from the addition reaction with iodine.</p><p>The other types of lipids (phospholipids and steroids) are harder to ask and answer questions upon. Stress the difference between HDL and LDL and the fact that LDL are formed from saturated fats and are potential harmful as they can line the walls of arteries.</p><p>The use of omega-3 and omega-6 to characterise the position of the first double bond in fatty acids (particularly linolenic and linoleic acids) is worth covering as they are used in food labelling. Rancidity of fats can occur by hydrolysis to give glycerol and the fatty acids (which give the rancid smell) or by oxidation across the double bonds.</p><p>When talking about the health problems caused by lipids it is worth including the problem of <em>trans-</em> fatty acids. These are formed during the partial hydrogenation of poly-unsaturated fatty acids and are present in fried foods. They can increase the amount of LDL cholesterol and thus the risk of heart disease. Strangely, SL students are not expected to be able explain the difference between cis- and trans-.</p><hr class="hidden"></td><td style="width: 50%;" valign="top"><h4><b><span style="font-weight: normal; "><strong>Study guide</strong></span></b></h4><p style="margin: 0px 0px 1em; padding: 0px; color: rgb(0, 0, 0); font-size: 1em;"><a href="http://ukcatalogue.oup.com/product/education/international/ibdiploma/studyguides/9780199151424.do?"><b><span style="font-weight: normal;"><img alt="" class="left noborder" src="../../../ib/chemistry/images/2014%20Basic%20information/New%20cover.jpg" style="width: 67px; height: 96px;"></span></b></a></p><p style="margin: 0px 0px 1em; padding: 0px; color: rgb(0, 0, 0); font-size: 1em;"></p><hr class="hidden"><p><b><span style="font-weight: normal;">Pages 128 & 129 </span></b><b><span style="font-weight: normal;"> </span></b></p><p style="margin: 0px 0px 1em; padding: 0px; color: rgb(0, 0, 0); font-size: 1em;"></p><hr class="hidden"><h2>Questions</h2><p>For ten 'quiz' questions (for quick testing of knowledge and understanding with the answers explained) see <a href="../24834/mc-test-lipids-1.html" title="Options » Option B » Lipids » MC test: Lipids">MC test: Lipids</a>.</p><p>For short-answer questions see <a href="../19292/lipids-questions--1.html" title="Options » Option B » Lipids » Lipids questions ">Lipids questions </a> together with the worked answers on a separate page <a href="../24863/lipids-answers-1.html" title="Options » Option B » Lipids » Lipids answers">Lipids answers</a>.</p><hr class="hidden"><h4><span style=""><b><span style="font-weight: normal;"><strong>Vocabulary list:</strong></span></b></span></h4><p>triglyceride<br>phospholipid<br>high density lipoprotein, HDL<br>low density lipoprotein, LDL<br>iodine number<br>essential fatty acid<br>trans-fatty acid<br>omega-3 and omega-6</p><hr class="hidden"></td></tr></tbody></table></div><hr class="hidden"><div class="greenBg"><h2 id="header-11">Teaching slides</h2><p>Teachers may wish to share these slides with students for learning or for reviewing key concepts.</p><div id="myCarousel-12" class="carousel slide" data-id="459"><!-- Carousel items --><div class="carousel-inner"><div class="active item"><a class="fancy" href="../../../tib-galleries/3-459/l1.png" rel="gallery-459" title=""><img alt="" src="files/tib-galleries/3-459/l1.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div><div class="item"><a class="fancy" href="../../../tib-galleries/3-459/l2.png" rel="gallery-459" title=""><img alt="" src="files/tib-galleries/3-459/l2.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div><div class="item"><a class="fancy" href="../../../tib-galleries/3-459/l3.png" rel="gallery-459" title=""><img alt="" src="files/tib-galleries/3-459/l3.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div><div class="item"><a class="fancy" href="../../../tib-galleries/3-459/l4.png" rel="gallery-459" title=""><img alt="" src="files/tib-galleries/3-459/l4.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div><div class="item"><a class="fancy" href="../../../tib-galleries/3-459/l5.png" rel="gallery-459" title=""><img alt="" src="files/tib-galleries/3-459/l5.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div><div class="item"><a class="fancy" href="/files/tib-galleries/3-459/lipids-6-replacement.png" rel="gallery-459" title=""><img alt="" src="/files/tib-galleries/3-459/lipids-6-replacement.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div><div class="item"><a class="fancy" href="../../../tib-galleries/3-459/l7.png" rel="gallery-459" title=""><img alt="" src="files/tib-galleries/3-459/l7.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div><div class="item"><a class="fancy" href="../../../tib-galleries/3-459/l8.png" rel="gallery-459" title=""><img alt="" src="files/tib-galleries/3-459/l8.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div><div class="item"><a class="fancy" href="../../../tib-galleries/3-459/l9.png" rel="gallery-459" title=""><img alt="" src="files/tib-galleries/3-459/l9.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div><div class="item"><a class="fancy" href="../../../tib-galleries/3-459/l10.png" rel="gallery-459" title=""><img alt="" src="files/tib-galleries/3-459/l10.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div><div class="item"><a class="fancy" href="../../../tib-galleries/3-459/l11.png" rel="gallery-459" title=""><img alt="" src="files/tib-galleries/3-459/l11.png"></a><div class="carousel-caption"><p>Lipids: </p></div></div></div><!-- Carousel nav --><a class="carousel-control left" href="#myCarousel-12" data-slide="prev">‹</a><a class="carousel-control right" href="#myCarousel-12" data-slide="next">›</a><div class="tib-indicators"><img class="" title="Click to view" style="margin: 10px 4px; width: 48px; height: 48px;" alt="" src="files/tib-galleries/3-459/l1-thumb128.jpg"><img class="" title="Click to view" style="margin: 5px 4px; width: 48px; height: 48px;" alt="" src="files/tib-galleries/3-459/l2-thumb128.jpg"><img class="" title="Click to view" style="margin: 5px 4px; width: 48px; height: 48px;" alt="" src="files/tib-galleries/3-459/l3-thumb128.jpg"><img class="" title="Click to view" style="margin: 5px 4px; width: 48px; height: 48px;" alt="" src="files/tib-galleries/3-459/l4-thumb128.jpg"><img class="" title="Click to view" style="margin: 5px 4px; width: 48px; height: 48px;" alt="" src="files/tib-galleries/3-459/l5-thumb128.jpg"><img class="" title="Click to view" style="margin: 5px 4px; width: 48px; height: 48px;" alt="" src="/files/tib-galleries/3-459/lipids-6-replacement-thumb128.png"><img class="" title="Click to view" style="margin: 5px 4px; width: 48px; height: 48px;" alt="" src="files/tib-galleries/3-459/l7-thumb128.jpg"><img class="" title="Click to view" style="margin: 5px 4px; width: 48px; height: 48px;" alt="" src="files/tib-galleries/3-459/l8-thumb128.jpg"><img class="" title="Click to view" style="margin: 5px 4px; width: 48px; height: 48px;" alt="" src="files/tib-galleries/3-459/l9-thumb128.jpg"><img class="" title="Click to view" style="margin: 5px 4px; width: 48px; height: 48px;" alt="" src="files/tib-galleries/3-459/l10-thumb128.jpg"><img class="" title="Click to view" style="margin: 5px 4px; width: 48px; height: 48px;" alt="" src="files/tib-galleries/3-459/l11-thumb128.jpg"></div></div><p> </p></div><hr class="hidden"><div class="blueBg"><h2><span style="font-weight: bold;">Other resources</span></h2><p><strong>1. </strong>A good video by Bozeman Science on lipids.</p><p style="text-align: center;"><iframe allowfullscreen="" frameborder="0" height="280" src="//www.youtube.com/embed/VGHD9e3yRIU" width="360"></iframe></p><p style="text-align: center;"><a href="http://youtu.be/VGHD9e3yRIU" target="_blank" title="Videos"><img class="ico" src="../../../img/icons/video-1.png"><span class="anchor" id="video-1" name="video-1"> </span> Lipids</a></p><hr class="hidden"><p>2. A really nice video from Applied Science on the hydrogenation of fats. It explains the different types of fats and oils and shows practically how unsaturated fats can be hydrogenated. It also discusses the problems associated with <em>trans</em> fats. (Many thanks to Phil Tuckey a subscribing chemistry teacher from the International Christian School of Vienna who alerted me to this video).</p><p style="text-align: center;"><iframe allowfullscreen="" frameborder="0" height="280" src="//www.youtube.com/embed/oqdDWA9-DSY?rel=0" width="360"></iframe></p><hr class="hidden"><p><strong>3.</strong> A simple <a href="http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP13204">PowerPoint from Wisc-Online</a> that you may find helpful.</p><hr class="hidden"><strong>4.</strong> A factual video on hydrolytic and oxidative rancidity by MSJChem.<p style="text-align: center;"><iframe allowfullscreen="" frameborder="0" height="280" src="//www.youtube.com/embed/Io-fovloFxo" width="360"></iframe></p><p style="text-align: center;"><a href="http://youtu.be/Io-fovloFxo" target="_blank" title="Videos"><img class="ico" src="../../../img/icons/video-1.png"><span class="anchor" id="video-2" name="video-2"> </span> Hydrolytic and oxidative rancidity</a></p><hr class="hidden"></div></section></article><section id="media-extras"><div class="page-actions no-print navbar inline hidden-desktop"><div class="navbar-inner"><ul class="nav"><li><a class="presentation" href="#" onclick="return false;"><i class="fa fa-desktop"></i></a></li><li><a class="print-section-blog" href="#" onclick="return false;"><i class="fa fa-print"></i></a></li><li><a class="page-bookmarker" data-ticket="IB Docs (2) Team" data-pid="19291" href="#" onclick="return false;"><i class="fa fa-star"></i></a></li><li><a class="personal-notes" href="#" onclick="return false;"><i class="fa fa-file-text"></i></a></li><li><a class="" data-toggle="modal" href="#modal-feedback" onclick="return false;"><i class="fa fa-envelope-o"></i></a></li><li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" data-target="#" href="#"><i class="fa fa-share-alt"></i></a><ul class="dropdown-menu" role="menu"><li><a class="" target="_blank" title="Share on Twitter" href="https://twitter.com/share?text=%22Lipids%22+-+via+%40InThinker+%23chemistry%0A&url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F19291%2Flipids"><i class="fa fa-twitter-square"></i><span>Twitter</span></a></li><li><a class="" target="_blank" title="Share on Facebook" href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F19291%2Flipids&t=Lipids"><i class="fa fa-facebook-square"></i><span>Facebook</span></a></li><li><a class="" href="http://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F19291%2Flipids"><i class="fa fa-linkedin-square"></i><span>LinkedIn</span></a></li><li><a class="" href="https://plus.google.com/share?url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F19291%2Flipids"><i class="fa fa-google-plus-square"></i><span>Google +</span></a></li><li><a class="" href="mailto:?subject=Lipids&body=Are saturated fats bad for your heath?There is real scope for both Nature of Science and Theory of Knowledge in discussing the question, ‘Are saturated fats bad for you?’ For the past forty years the advice from governments...%0Ahttps%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F19291%2Flipids"><i class="fa fa-envelope"></i><span>Email</span></a></li></ul></li><li><a class="" href="chemistry/teaching-materials"><i class="fa fa-puzzle-piece colored"></i></a></li></ul></div></div><div style="border-top: solid 1px #eee;border-bottom: solid 1px #eee;padding: 4px 0 4px 0;line-height: 1em;color: #666;font-size: .8em"><small><em>All materials on this website are for the exclusive use of teachers and students at subscribing schools for the period of their subscription. 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