Five Sense Biochemistry

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Presentation transcript:

Five Sense Biochemistry Love thy Lipids

Lipid Chemistry Main Elements of Lipids: Carbon hydrogen & oxygen The ratio of hydrogen to carbon is greater than 2:1

Lipid Chemistry Lipids are non-polar, hydrophobic molecules How do lipids behave in the presence of polar molecules such as water? Lipids include fats, phospholipids, waxes & steroids

Function of Fats Energy storage Fats contain 9 calories/gram whereas carbohydrates contain 4 calories/gram

Fats Fats are composed of glycerol & three fatty acids (tri-glyceride)

Saturated Fat Study the pattern of carbon & hydrogen bonding—why do you think this is a saturated fat?

Unsaturated Fat Study the pattern of carbon & hydrogen bonding—why do you think this is a unsaturated fat?

Trans Fats What makes trans fats different than other unsaturated fats?

Phospholipids Similar to a fat, but contains only two fatty acids and a phosphate group. Polar heads & non-polar tails Where are phospholipids found in cells?

Steroids (Sterols) Lipids with four fused rings & no fatty acids Cholesterol is found in cell membranes & plays a role in hormone synthesis