Food is the main source of carbohydrates, aminoacids, lipids and vitamins. Each of these are absorbed through the duodenum, yeyuni or ileum, by active and passive transports. They flow into the bloodstream and go through the liver, which is in charge of metabolizing these substances in order to store them and to keep normal glucose levels. Glucose is transformed into glycogen, and is slowly released to keep the 80/100g% standard glucose levels necessary for organs like brain and heart to function.
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Energy is obtained from food through a process called cellular respiration. When we eat food, our body breaks it down into smaller molecules, such as glucose. These molecules are then converted into energy in the form of adenosine triphosphate (ATP) through a series of chemical reactions in the mitochondria of our cells. This ATP is used as a source of energy for various cellular activities.
The first prokaryotes likely obtained their food through chemosynthesis, using inorganic compounds such as hydrogen sulfide or methane as an energy source. They did not rely on sunlight for photosynthesis, as they lacked chlorophyll and other necessary cellular components for this process.
the smooth muscles in the small intestine take the energy and nutrients from the chemical energy to the liver where they are taken to the whole body, the other compounds not obtained by food are made in the human body
METABOLISM. Metabolism is the sum of the group of reactions to obtain energy and basic compounds from food (catabolism), and the group of reactions to form organic molecules and to use energy obtained form food (anabolism).
Organisms share energy obtained from the sun through food chains and food webs. Producers (like plants) convert sunlight into energy through photosynthesis, which is then consumed by primary consumers (herbivores), secondary consumers (carnivores), and so on. This transfer of energy occurs as organisms are eaten and the energy is passed along the food chain.
Cells are fed through a process called cellular respiration, where they convert nutrients like glucose into energy through a series of chemical reactions. This energy is used to perform all the functions necessary for the cell to survive and carry out its specific role in the body. Nutrients are typically obtained from the food we eat and are delivered to the cells through the bloodstream.