Action of the stomach mixes your food with chemicals made by your body then churns up the food into smaller parts.
The stomach would be the only part of the digestive tract that could be described as churning and mixing the food.
Stomach
The name of the structure that breaks up food into smaller parts and mixes with salvia is called teeth.
The stomach.
The stomach.
Teeth
The stomach.
The stomach acts as a reservoir for food, churns the food, mixes it with gastric juices, and gradually releases the food into the small intestine. Some water, alcohol, and glucose are absorbed directly through the stomach into the bloodstream. Enzymes secreted by the stomach help break down proteins and fats into simpler substances. Hydrochloric acid secreted by the stomach kills bacteria and prepares some minerals for absorption in the small intestine. Some food may leave the stomach one minute after it enters, while other parts of a meal may remain in the stomach for as long as five hours.
The process you are referring to is called digestion and it occurs in living organisms to break down food into smaller molecules that can be absorbed and used for energy. In cells, a process known as autophagy uses chemicals to break down and recycle worn out cell parts, helping maintain cellular function and health.
There are two parts of a cell that contain chemicals: lysosomes and peroxisomes.
Cells and fibers are the smaller parts that make up muscle tissue.
Two reasons: # Smaller than a single atom of an element, it ceases to be an element. # The energies available to chemical means is a million times too small to break apart an atom of an element (the nucleus) to "smaller parts".