Transcription of Metabolism - Jones & Bartlett Learning
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Metabolism - Jones & Bartlett Learning
THINK About ItVisit 7 Metabolism1 You are driving on the energy highway. You stop at the tollbooth. What kind of currency do you need to pay the toll?2 When you think of cell power, what comes to mind?3 What do you think is meant by the saying Fat burns in a flame of carbohydrate ?4 When it comes to fasting, what s your body s first priority?THINK About ItVisit 2671/20/10 7:34:39 AM Jones and Bartlett Publishers, LLC. NOT FOR SALE OR DISTRIBUTION268 Chapter 7 MetabolisMYour body is a wonderfully efficient factory. It accepts raw materials (food), burns some to generate power, uses some to produce finished goods, routes the rest to storage, and discards waste and by-products. Constant turnover of your stored inventory keeps it fresh. Your body draws on these stored raw materials to produce compounds, and nutrient intake replenishes the you ever wonder how your biological factory responds to changing supply and demand?
Endoplasmic reticulum (ER) • An extensive membrane system extending from the nuclear membrane. • Rough ER: The outer membrane surface contains ribosomes, the site of protein synthesis. • Smooth ER: Devoid of ribosomes, the site of lipid synthesis. Golgi apparatus • A system of stacked membrane-encased discs. • The site of extensive ...
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