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15 Cards in this Set
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- Back
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what is hypertrophy?
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increase in number of fat cells
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How large can fat cells get?
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1000x
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Most depot fat comes directly from...
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dietary TGs
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What is lipogenesis?
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transformation of excess protein and CHO to fatty acids in the liver; inefficient process
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What are SVOCs?
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semivolatile organic compounds - they accumulate in adipose tissues from exposure to toxins, chemicals, and pesticides
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What does lipoprotein lipase (LPL) do?
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moves lipid from the blood into the adipose cell where it hydrolyzes TG into free fatty acids and glyerol
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After TGs are hydrolyzed into free fatty acids and glycerol, what happens?
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Glyercol proceeds to the liver; fatty acids enter the adipocyte and are reesterified into TGs
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What does hormone-sensitvie lipase do?
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It hydrolyzes TGs to fatty acids and glycerol within the adipose cell so they can be released into circulation
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What is involved in short-term body weight regulation?
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Consumption of food from meal to meal
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What is involved in long-term body weight regulation?
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Availability of adipose stores and hormone responses
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The RMR is __-__% of the TEE
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60-70%
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Give two instances in which RMR decreases.
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-age
-weight loss |
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On a weight loss diet, RMR can drop by __% in two weeks.
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15%
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What is activty thermogenesis?
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Energy expended in voluntary activity, the most variable component of TEE
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Ususally, physical activity accounts for __-__% of TEE
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15-30%
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