Lecture 15 - Kin 110-Lecture #15 March 3rd, 2010 Fat as an...

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Kin 110-Lecture #15 March 3 rd , 2010 Fat as an energy source: o Fat (lipid) contains energy in chemical bonds that can be used to perform many different kinds of work. Fatty acids (free fatty acids or FFA) can be oxidized to produce ATP Palmitate -16-carbon fatty acid is the most common. 1. What are triglycerides composed of and how much energy do they contain? 3 fatty acids and a backbone of glycerol Stored in plants and animals Very energy dense molecules= 9 kcal/gram unlike CHO which is 4kcal/gram 2. Where is fat stored? What is associated with excessive visceral fat? Fat is stored in adipose tissue in cells called adipocytes. Stored under the skin, subcutaneous , is the main storage. Visceral fat is mainly in the abdomen around vital organs and is strongly related to heart disease, diabetes, etc. 3. Describe 5 steps in the conversion of stored fat to energy: Mobilization o Release of stress hormones (e.g., epinephrine) into the blood (fight or flight)
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This note was uploaded on 10/19/2011 for the course KIN 110 taught by Professor Lass during the Spring '08 term at UMass (Amherst).

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Lecture 15 - Kin 110-Lecture #15 March 3rd, 2010 Fat as an...

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