AllFreePapers.com - All Free Papers and Essays for All Students
Search

How Is Food Transformed into Energy?

Autor:   •  May 20, 2016  •  Term Paper  •  373 Words (2 Pages)  •  776 Views

Page 1 of 2

How is food transformed into energy?

The stomach and small intestines absorb the glucose and then release it into the bloodstream. Once in the bloodstream, glucose can be used immediately for energy or stored in our bodies, to be used later. However, our bodies need insulin in order to use or store glucose for energy. Without insulin, glucose stays in the bloodstream, keeping blood sugar levels high. This process reduces food into molecules that the body can the use for producing energy. Most nutrient absorption occurs in the small intestine, while water absorption occurs in the large intestine. The energy provided by the foods people eat is measured in calories. A grain of fat will consequently equal nine calories, whereas both proteins and The body conveys these chemicals to the cells of the body through the circulatory/cardiovascular system. Within these cells are organelles called mitochondria, this is where energy production occurs through a complicated series of chemical reactions to produce ATP the energy currency of the body. The circulatory/cardiovascular systems will also ensure that the cells have sufficient oxygen. Our energy comes from fats, carbohydrates and proteins in the food that individuals eat. Glucose is a simple sugar that provides the body with its primary source of energy. This type of sugar comes from digesting carbohydrates into a chemical that the body can easily convert to energy. Everyone’s body relies specifically on carbohydrates and fat from they eat for energy. Energy is used at all times for the body processes and is supplied by an individual’s diet this is the form of calories. Within the human body, energy is needed for a variety of reasons, the first reason is that without energy humans would be unable to function correctly, which would prevent them from doing absolutely anything, and for example humans wouldn’t be able to communicate as they would not have energy to speak. Another

...

Download as:   txt (2.2 Kb)   pdf (46.9 Kb)   docx (8.4 Kb)  
Continue for 1 more page »