JH+Fat+HW

Fat is doing us a favor...You may need to look up some of the answers on the internet or your book. (1) Liposuction suctions out adipose tissue. What is adipose tissue? it is also called fat which is used to store energy (2) Define epidemic. it is a term that describes a disease and its ease of spread (3) Define obesity. it is when your BMI it 30% or over and your really fat (4) How could we have an obesity epidemic? the way we could have an obesity epidemic is by fast food being some of the only cheap food that people can get now a days. so that the only option they have is to eat carb loaded crap that makes them fat (5) What are the main obesity related illnesses? heart disease, high blood pressure, high cholesterol, and type 2 diabetes (6) How does the liver protect the body from alcohol? it filters the blood and keeps the alcohol in the blood at a certain level. and your liver break down the alcohol (7) Where does excess energy go? it is store as fat into our bodies (8) Why do we have so much excess energy in our diet? because when we try to eat low fat we end up eating more carbs which means we have extra energy (fat) (9) If we didn't have adipose tissue where could we put the excess energy? Is this OK? this is not ok because if we didnt have any fat we wouldnt be able to live and we would have to eat alot so that our body wouldnt start burning muscle instead of the fat that it is supposed to burn “If you had no fat cells, no adipose tissue, you’d still be out of energy balance, and you’d put the excess energy somewhere else,” he said, at which point really bad things can happen. Consider the lipodystrophy diseases, rare metabolic disorders in which the body lacks fat tissue and instead dumps its energy overruns in that jack-of-all-organs, the liver, causing extreme liver swelling, liver failure and sometimes liver-bearer death."(fat article) (9) Humans have much more body fat than our closest relatives the chimpanzees. What is a possible evolutionary reason for this? one possible reason for this is because we have bigger brains than the chimps so we need more excess energy to power it (10) Adipocytes (Fat cells) are filled with fat called triglycerides. Describe the triglyceride structure and why it contains so much energy. "Each fat cell is essentially a bouncing balloon filled with those greasy lipids we call triglycerides, three fatty acid chains of mostly carbons and hydrogens arrayed in high-energy configurations" (11) What happens to adipocytes when we gain weight? (a lot of weight) they multiply the fat cells in your body and then they stay with you for live because fat cells dont just die (12) Adipose tissue can be an endocrine gland too. Which hormone do adipocytes release, and how does this signal the body that it is time for puberty? leptin "Scientists suspect that a girl enters puberty when her fat stores become sufficiently dense to begin releasing leptin, which signals the brain to set the pulsing axis of gonadal hormones in motion."