the pharynx act is a connecting tube from the mouth to the stomach providing mechanical propulsion
Mechanical digestion is produced by breaking down and chewing food. This process involves the physical breakdown of food into smaller pieces that can be further digested and absorbed by the body.
The anus is not involved in either chemical or mechanical digestion. Its main function is to expel indigestible material out of the body in the form of feces.
Chemical digestion takes place in the stomach, the intestines, (saliva or enzymes) these parts of your body also use mechanical digestion.
Mechanical digestion, i.e. your body breaking up the food into smaller pieces, is largely meant to speed chemical digestion up. We know that the rate at which the chemical reaction takes place is dependent on four things: the physical state of the reactants involved in the reaction, the temperature at which the reaction takes place, the concentration of the reactants, and the presence of a catalyst. Each influences the rate of reaction in different ways. Mechanical digestion breaks the food into smaller pieces, i.e. changes the physical state. With the larger pieces broken into smaller ones, more surface area is exposed. With greater surface area exposure, chemical digestion can take place much more rapidly. However, if for some reason you could get just huge chunks of food down your throat without chewing it, your stomach still churns (mechanical digestion) and the contractions in your intestines also help to break up food. So technically yes, chemical digestion would take place, but at a much slower and inefficient manner.
Mechanical digestion is the process that increases the surface area of foods prior to chemical digestion. This process involves chewing, churning in the stomach, and segmentation in the small intestine to physically break down food into smaller pieces, allowing enzymes to work more efficiently.
Chemical digestion and mechanical digestion
does absorption occur when mechanical or chemical digestion
While the pharynx and esophagus do not perform any mechanical or chemical digestive processes, they provide a critical service for the digestive system. They move food from the mouth to the stomach.
Saliva begins the chemical digestion of starch. It also is important for the success of mechanical digestion of the mouth, but does not, in its own, perform mechanical digestion.
Mechanical and chemical digestion are not the same.
chemical digestion is breaking down with saliva, and mechanical digestion is chewing...(break down with chew!):):P
Mechanical digestion chops the food in to smaller pieces, thus exposing more of it to the enzymes of the chemical digestion.Mechanical digestion begins in the mouth by the teeth, tongue and saliva. Mechanical digestion is important for chemical digestion because when food is broken down into smaller particles by mechanical means, chemical digestion will be more efficient.
what is responsible for chemical digestion in earthworms
does absorption occur when mechanical or chemical digestion
mechanical and chemical digestion
The small intestine completes the process of chemical digestion.
The large intestine is mechanical digestion; it absorbs water and is involved in peristalsis. It has nothing to do with enzymes, which is chemical digestion.