It is very complex process.
Food enters in cell in form of simple molecules (for example Glucose).
It uses various enzymes and chemicals to break these molecules in to energy and other by products.
Lysosomes
cells
Lysosomes are organelles found in animal cells that serve to break down food and also recycle other cell parts. They are not present in blood cells.
Lysosomes are organelles found in animal cells that serve to break down food and also recycle other cell parts. They are not present in blood cells.
Organisms have cells. Inside the cells, there is a organelle called the lysosome. The lysosome breaks down and digests food. Or your digestive system can digest food.
cells
Because your little cells can't digest a whole steak! You need to break it down so your cells can use the nutrients and molecules that make up your food.
The cells themselves don't break down the food, it is a series of chemicals and enzymes (biological catalysts) in the digestive system. All food is broken down in the digestive system by a process called, funnily enough, digestion. Then it is absorbed into the blood stream through the villus in the small intestines
To get energy. Sugars are particularly important fuel molecules. They are oxidized in the food we eat and must be broken down into smaller molecules before our cells can use them.
oxygen
no
Cells in the body use oxygen to break down glucose from food into energy through a process called cellular respiration. This process takes place in the mitochondria of the cells, where oxygen is needed to produce ATP, the primary source of energy for cellular functions.