Chapter 34 Nutrition and Digestion

Chapter 34 Nutrition and Digestion - November 18, 2011...

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November 18, 2011 Chapter 34 Nutrition and Digestion A nutritionally adequate animal diet satisfies three needs: Fuel (chemical energy) Organic raw materials for biosynthesis (especially carbon-based molecules) Essential nutrients (substances that the animal needs, but cannot synthesize from any precursors on its own) November 21, 2011 A nutritionally inadequate animal diet fails to satisfy the three basic needs we just covered. Undernourishment—insufficient calories (energy) Overnourishment—too many calories and too much stored fat. Malnourishment—a diet missing one or more essential nutrients Energy in nutrients is measured in Calories (kcal=energy to raise the temperature of 1 L of water 1 degree C) An average human body uses about 1,550 Calories/day. Principal categories of nutrients: Lipids—found in lipid membranes, etc.; including essential fatty acids. o
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This note was uploaded on 01/19/2012 for the course BIO 1002 taught by Professor Hrinchevich during the Fall '10 term at LSU.

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Chapter 34 Nutrition and Digestion - November 18, 2011...

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