Fats and Proteins

Fats and Proteins - chapter 2 Fuel for Exercising Muscle:...

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1 2 Fuel for Exercising Muscle: Metabolism and Hormonal Control chapter Fat: Overview Provides substantial energy at _____ and during ____________________. Body stores of fat are _____ than carbohydrate reserves Fat is _____ readily available for cellular metabolism compared to carbohydrate Fat is stored as __________ and must be broken down to ____________________ to be used in metabolism _____ energy is derived from breaking down of fat (_____ kcal/g) compared to carbohydrate (_____ kcal/g) Lipids What is the generic structure of a lipid? When compared to a carbohydrate, how is it… – Similar? – Different?
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2 What is the most common lipid? There are two types of FA: Saturated FA Unsaturated FA To be learned on your own. To be learned on your own. Saturated FA Contain no double bonds between their carbons. Are mainly found in: – Animal products, palm oil, and coconut oil. Are solid at room temperature.
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3 A diet high in saturated FA increase one’s risk of cardiovascular disease because. .. In the liver, saturated FA are converted to cholesterol. – High cholesterol levels promote atherosclerosis (i.e., the build-up of plaque on the innermost layer of the walls of blood vessels). • Blood vessels narrowed by a buildup of ―bad‖ cholesterol are more likely to be blocked by blood clots, causing a heart attack or stroke. To be learned on your own. Unsaturated FA: Contain at least 1 double bond between their carbons. Are found in vegetable products and fish. Are liquid at room temperature. May decrease one’s risk of cardiovascular disease by: • lowering LDL cholesterol (―bad‖ cholesterol), and • decreasing blood clot formation. To be learned on your own. To be learned on your own. The presence of absence of double bonds between the carbon atoms is the major structural difference between sat. and unsat. FA
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4 There are two types of Unsaturated FA: Monounsaturated FA Polyunsaturated FA To be learned on your own. Monounsaturated FA Contain 1 double bond between its Carbons. Examples: • Olive, Peanut, and Canola Oil • Avocados To be learned on your own. Polyunsaturated FA Contain 2 or more double bonds between their carbons. Examples: • Corn, Soybean, Sunflower, and Safflower Oil • Omega 3-FA (Fish Oil). To be learned on your own.
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5 Side Note: Hydrogenated Fats Hydrogenation refers to the addition of hydrogens to unsaturated fats. – Adding H changes the structure of a Fat.
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This note was uploaded on 04/14/2011 for the course N/A N/A taught by Professor N/a during the Spring '11 term at Texas State.

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Fats and Proteins - chapter 2 Fuel for Exercising Muscle:...

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