LIFESCI 2N03 Lecture Notes - Lecture 12: Bacon, Visual Impairment, Avocado
26 Oct 2017
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117-121 (5. 3) --> fat digestion, absorption and transport. Scientists make breakthrough in linking sugar to cancer growth. Gluten free doesn"t mean healthier --> more likely to gain weight / lose weight. Lipid = triglycerides (fats and oils), phospholipids and sterols. 95% of lipids in foods are fats and oils. 99% of lipids in the body are triglycerides. Fat can be composed of 4-24c, h and o. More c and h than carbohydrate, therefore provides more kcal per gram. Some of our sex hormones come from sterol and cholesterol - our liver makes cholesterol (800-1500 mg) because we need it to synthesize bile acids and different proteins/ hormones in the body. Variable length with methyl end and acid end. Degree of unsaturation a. b. c. d. e. If you take away single h bond, have to add in double bond. Fat with one double bond more likely to spoil. Saturated fats stick nicely together - less likely to spoil.
