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NTR108 Exam #2
Causes of Obesity
| Question | Answer |
|---|---|
| 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
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