Review II

Review II - Review II Partnership for Honduran Health...

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Review II
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Partnership for Honduran Health Cornell Student Society for Public Health
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How is a VLDL different from a LDL? 1. Apo B receptors on LDL - Apo B, C, and E receptors on VLDL 2. The amount of triglyceride they carry
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Which lipoprotein particle carries triglycerides from the liver? VLDL
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How can we minimize the risk of heart attack or stroke? 1. Eat omega-3 2. Aspirin 3. Drink 1 oz of alcohol 4. Exercise 5. Relax
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How do we estimate the energy content of food? Bomb Calorimeter
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What is a Joule? Measure of the amount of work than can be performed.
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Why is the energy value of food on a label smaller than the value derived from bomb calorimetry?
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Carbohydrate Protein Fat Alcohol 4.15 Heat of Combustion 6.93 9.45 5.85 Energy in Nitrogen 0 0 0 1.30 Net Combustion 4.15 6.93 9.45 4.55 Digestibility 0.98 0.95 0.92 1.00 Energy (kcal) 4 7 ? 9 4 Energy (kj) 17 17 38 30 Food Tables
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How is the Respiratory Quotient derived and what does it mean?
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C 6 H 12 O 6 684 Kcal Metabolism of Glucose = 6 CO 2 + 6 H 2 O + + 6 O 2 /(6 O 2 ) RQ = (6 CO 2 ) = 1.0 Respiratory Quotient
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What two factors do we have to know to estimate metabolic rate from indirect calorimetry? 1. Amount of O 2 Consumed or CO 2 Expired 2. RQ
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What aspect of energy metabolism are we really measuring through indirect calorimetry? ATP production
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What are the limitations of using indirect calorimetry to estimate energy expenditure? 1.Can’t measure for long periods of time. 2.Not very natural. - Use a room for analysis - Restricts range of movements
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energy expenditure? How does the labeled O 2 leave the body? How does the labeled H
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This note was uploaded on 12/18/2011 for the course NS 1150 taught by Professor Levitsky during the Fall '05 term at Cornell.

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Review II - Review II Partnership for Honduran Health...

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