8 - 1 Phospholipids and Steroids 2 Amino acid structure and...

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1 9/8/10 1. Phospholipids and Steroids 2. Amino acid structure and condensation Buskirk office hours Mon 8/13 (PAI 3.04) 3:30-5 pm, not 2-3 pm Lipids are a diverse group of nonpolar molecules Many lipids are synthesized from fatty acids Review - What is the structure of a fatty acid? How could different fatty acids differ from one another? 1 glycerol and 3 fatty acid molecules form a triglyceride (= triacylglycerol, tri acyl glycerol) by condensation. How many water molecules are formed? A. none B. 1 C. 2 D. 3 E. many 4 Does a triglyceride have any OH groups? Adipose Tissue These are fat cells; See how the nucleus is squashed to the side? Lipids are the lowest density energy storage molecules. What are the differences between saturated and unsaturated fats? Have you heard of “hydrogenation”? What is this process, and why would people hydrogenate vegetable oil? polar non-polar A phospholipid is made from a glycerol and only two fatty acids.
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