ch369_sp11_lipid_metab_1_notes

ch369_sp11_lipid_metab_1_notes - Reminder: My office is in...

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Reminder: My office is in 4.230C on the 4th floor of Welch. (I moved there about 6 weeks ago)
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Is there too much CO 2 in the atmosphere, or too little? For plants, the CO 2 is OK, it helps with photosynthesis. But it is a greenhouse gas, so temperatures are expected to rise, with significant climate change.
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global warming wikipedia
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global warming wikipedia
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Chapter 16 (or 14). Lipid metabolism.
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FAs and TAGs store a lot of energy in a small volume. Denser energy storage than carbohydrates (fats can be packed together tightly without intervening water). Compare 38 kJ/g in fats versus 16 kJ/g in carbohydrates. Difference is mostly because fats are more reduced (less oxidized) than carbohydrates. Also, fats require less water for packing. Fatty acids (FAs) and triacylglycerols (TAGs) Fatty acid
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Sources of lipids for metabolism. Fatty acids and triacylglycerols are obtained in the diet. Triacylglycerols are also synthesized in the liver. Triacylglycerols are stored in fat cells. Fatty acid
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Lipid metabolism in animals Transport is a problem - fats are not soluble in water (too hydrophobic). Systems are needed for their absorption and transport to where they can be metabolized. (fats are metabolized mostly in skeletal muscles, heart, liver)
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Most fats enter intestine as globules. Bile is used to assist in breaking down insoluble fat globules. Bile Produced by the liver and stored in the gall bladder. Enters GI tract at start of small intestines. Composed of micelles of lecithin, cholesterol, protein, salts.
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This note was uploaded on 06/20/2011 for the course CHEM 369 taught by Professor Hoffman during the Spring '11 term at University of Texas at Austin.

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ch369_sp11_lipid_metab_1_notes - Reminder: My office is in...

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