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NTR108 Exam #2

Causes of Obesity

Energy Imbalance Weight is gained when you're taking in more energy than your expending (nrg is calories and when you take in more cals that u lose you're obv gonna gain weight)
Gene Defects can be a defect in just a single gene
What is Leptin and what happens when there's excess of it? A protein or hormone made in fat cells. More fat = more leptin --> don't have leptin = get heavy. No communication b/w brain and fat.
What is a child's propensity to gain weight if both, one, or neither parents are obese? both: 80% || one: 60% || neither: 10%
Identical twins raised apart tend to have (similar/different) weight gain patters & accumulate weight at (similar/different) sides. Identical twins raised apart tend to have SIMILAR weight gain patters & accumulate weight at SIMILAR sides.
Thrifty Gene Theory The idea that genetics have an influence on weight
Set-Point Theory Everyone is "programmed" to weigh a certain amt or have a specific lvl of BF. If individuals weigh less or more than their "set-point" their bodies make adjustments in food intake or BMR. THIS IS NOT ALWAYS TRUE. IT'S PHYSIOLOGICAL.
Ghrelin & Leptin NRG Regulating Hormones
How is Body Fat determined? By the number of fat cells times the amount of fat in the fat cell
What happens when a child overeats? Causes more fat cells. Children won't grow many new fat cells when mature.
What are some metabolic factors that can cause obesity? Low Metabolic Rate, Low levels of spontaneous physical activity, low fat oxidation
Created by: jessberis