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Where does the energy that makes life possible come from? Humans obtain energy from three classes of fuel molecules: carbohydrates, lipids, and proteins.
- Cell Metabolism
Catabolic pathways involve the breakdown of nutrient...
- Cell Metabolism
As we have just seen, cells require a constant supply of energy to generate and maintain the biological order that keeps them alive. This energy is derived from the chemical bond energy in food molecules, which thereby serve as fuel for cells.
Adenosine triphosphate (ATP), energy-carrying molecule found in the cells of all living things. ATP captures chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes. Learn more about the structure and function of ATP in this article.
During the chemical reactions of photosynthesis, energy is provided in the form of a very high-energy molecule called ATP, or adenosine triphosphate, which is the primary energy currency of all cells.
The food we eat supplies the body with energy-rich molecules like glucose. On entering the cells of the body, these molecules are broken down in a series of steps to reform carbon dioxide and water, releasing energy to be used by the body.
27 Σεπ 2021 · During the light reactions of photosynthesis, energy is provided by a molecule called adenosine triphosphate (ATP), which is the primary energy currency of all cells. Just as the dollar is used as currency to buy goods, cells use molecules of ATP as energy currency to perform immediate work.
29 Μαρ 2019 · ATP is the most abundant energy-carrying molecule in your body. It harnesses the chemical energy found in food molecules and then releases it to fuel the work in the cell. Think of ATP as a common currency for the cells in your body. The food you eat is digested into small subunits of macronutrients.
