How does our our body use the food we eat?
442217
Carbohydrates are broken down as glucose.  We use glucose to make ATP, which is energy for our body, so we can jump, hop, skip, and walk.
812625
Eating more calories than your body needs results in fat. A calorie is energy and when the body has to much energy or calories than they are stored as fat.\n\nCarbs are the easiest thing for your body to use to create fat stores.Carbs are almost pure energy for the body and the energy from carbs is normally immediatly stored if not used.\n Rarley will you gain fat from protein sources since protein is used to repair damaged tissue. Only if an excessive amount of protein is eatin will that happen.\nFats themselves are not bad and dont always go towards the fat stores in the body. The body needs all kinds of fats to perform all finds of bodily functions.\n\nAnother way is when the body gets to few calories and lowers the metabolism to accommidate this. If this persists than the starvation response is activated and the body will store all the food it can as fat in order to prepare itself for lower and lower amounts of calories.
64087
This is a very involved question you have asked if I answer it at an advanced level.  \nYou don抰 say what school you are in or what your present grade level is,\nso I will assume you are fairly young.\nThe first thing that happens to the food that we eat is that the digestive system \nphysically and chemically breaks it down into smaller and smaller particles until it \ncan be absorbed through the intestinal walls as individual molecules.  These molecules\n then enter the blood capillaries and are distributed throughout the body to be taken\nup by cells that need the \n(1) carbohydrate molecules for the energy , \n(2) amino acid molecules for building proteins, or \n(3) lipid molecules (fat) for building membranes, certain of the hormones, \nand other things, or just to store this concentrated form of potential energy \n(the fat molecules) for a rainy day.\nThose cells that start using the carbohydrate molecules for energy is where the bulk of \nthe heat is produced.  What happens first is that the carbohydrate has to be absorbed \nas glucose or another closely related monosaccharide molecule that the cell can change \nto glucose.  The glucose is then metabolized (broken down) to carbon dioxide and water \nthrough a large number of chemical steps that builds ATP molecules (the energy storage \n揷ellular bullets? that can be use for almost all the cell抯 needs for reactions that require\nenergy in an easily usable from.  Building the ATP and using the ATP is like you burning a \ntwig out in the yard (in a safe place, of course) to heat a small cup of soup.  The wood, \nas it burns, combines with oxygen and is changed into carbon dioxide and water, plus a \nlittle smoke which is a leftover product of incomplete burning of the wood.  Now the body \nis much more efficient than this and doesn抰 leave any smoke as it consumes the glucose \nand produces the ATP molecules.  Cells do produce heat while 揵urning?the glucose and \nwhile using the ATP just like the fire heating the soup.\nFor a more detailed description of these biochemical events you can go to any good \nbiochemistry textbook and it will give you the actual molecular reactions.  I have one such \nbook 揃iochemistry?3rd edition, by Lubert Stryer, published by W. H. Freeman and Company, \nNew York.  There are two reference in this book on heat production; page 421 at the bottom, \nand page 443-4.  The last section gives a fascinating description of how molecular 揵urning?\nproduces enough heat in the bumblebee抯 thorax to allow him to fly even when it is cold outside.\n\nNow I haven抰 even talked about the control of heat production, but the cells can burn \noxygen with glucose to produce the ATP and heat in some of their reactions or sometimes \nthe cells do not use oxygen while 揵urning?a different molecule to produce the heat.  \nBut whatever the metabolic pathways involved in producing heat, this activity is controlled \nby a hormone from the thyroid gland.  The term basal metabolic rate (BMR) is used to talk \nabout this level of activity and thyroxin, or really triiodothyronine, another thyroid hormone, \nis responsible for maintaining the appropriate level of metabolism that will keep your \ntemperature at approximately 37 degrees centigrade throughout your life when you are healthy.  \nYou can find a very good detailed explanation of this system in any endocrinology textbook.  \nI happen to like 揃asic and Clinical Endocrinology?5th edition, by Francis Greenspan and Gordon  \nStrewler, published by Appleton & Lange, Stamford, Connecticut.  Pages 214-215 deal with this \ntopic in their book.\nGo to your local library and take a look around for these types of books and you will have many \nhours of enjoyable reading.
306821
For one, you body uses the energy to burn fat and calories on its own, also your body uses the energy to give <i>you</i> personally, energy to be able to take on the day. Think of it this way: Go a few hours or so without food (like.. skip a meal or something). Take a note on how not eating for so long makes you feel. Then eat something, and make a note on how that makes you feel. That way you have not only the right idea, but also a first-hand experience of what you are trying to find out. (Plus it's a good science project ;-P)
714519
Well,the following processes take place:\n\nfirst of all you eat the plant material( cooked or uncooked.)mechanical digestion takes place in ur mouth i.e. the break down of food by teeth.then chemical digestion takes place;enzyme like salivary amylase breakdown starch into maltose.saliva is mixed with the food and formed into a bolus.then the food is swallowed.the bolus moves down the oesophagus(the food pipe) to the stomach.In the stomach,protein digestion take place(enzymes like protease breakdown protein into amino acids).then the food is carried t the small intestine where protein and carbohydrates are further broken down.Then the small soluble molecules pass through the villi into the blood stream where the nutrients are absorbed into the blood and thus carried to various parts of body.\n\nYa,I know my answer is long....but can't help it.Sorry!
331240
when you eat foods your stomach takes the nutrients and put it in the blood stream.Then the heart pumps it to the muscle fibers
850127
We get a number of nutrients from animals, but the primary one is protein.  The stomach breaks these down with a digestive enzyme called pepsin -- along with hydrochloric acid.  The resulting pieces are called amino acids.  These amino acids are absorbed into the blood at the small intestines, and carried in the blood to the body tissues.  The cells at these tissues contain the information necessary to reassemble these amino acids back into body proteins. This process is called protein synthesis.\nProteins can also be converted to energy by first reducing them into amino acids, then removing a specific part of the amino acid (called amine groups).  The resulting compound is now glucose.  The process is called deaminization.  The glucose can then be converted to energy in a process called cellular respiration.
275982
proteins, glucose/sugars, basically everything you eat.
409644
The whole amount of calories.  Think of it like fuel for your body, the gasoline that makes it work...for all of the fuel you put in, you need to drive (exercise) that much to burn it off.  Some of it is used just to keep you alive, and the rest needs to be 'used' or it gets stored...fat city.\n\nTo calculate your daily caloric needs:
744820
Dietitians relate to biology by understanding how food (healthy and otherwise) interacts with the human body, and how it effects our health and system.
624770
Food is an essential part of human social interaction.\n\nFood portions have increased and it contributes to obesity.\n\nThe variety of foods available in grocery stores has increased dramatically over the past 20 years.\n\nGenetically modified foods are on the shelves of your local grocery store\n\nLack of adequate nutrition contributes to millions of deaths in the world annually.\n\nFasting can be used as a spiritual practice.
982085
Your body needs fuel to burn fat.  You have to eat the right foods.
952467
Energy (ATP, from the food we eat) in our body is used to create chemical energy so our body can move and proceed with its daily life.\n________\n\nAll I can think of :(  Hope this helps! :) :)
400139
yeah, it's your body using it's energy to digest the food instead of keeping you at a steady temperature.  espeically happens after i eat a lot.
144262
Lokk at it like this:\nFood is fuel for your body\nbut sex is fuel for ypur soul!
446399
Nothing, it's your digestive system digesting your food.
908959
This is what we, in healthcare, call the body eating itself.  When there is no or low fat for the body to use for energy it will automatically use whatever it can find.  This protein consuming machine, our body, will eventually shut down because the major organs will be destroyed or give out.  This is what happens in anorexia.