Is the stomach chemical or mechanical digestion?
It is both:
Mechanical: The stomach is a muscular sack. It contracts and relaxes, sloshing and squeezing the food inside to break it down and to ease the job of the 'chemicals'. Another example is how many birds swallow stones to enhance the crushing and churning in their stomachs.
Chemical: The conditions and enzymes within the stomach contribute to chemical digestion. Hydrochloric acid, for example, creates an acidic environment that denatures proteins; whilst enzymes such as pepsin react at a molecular level with peptides to cleave them apart.
Although the mechanical digestion doesn't necessarily begin before the chemical digestion (Amylase in the saliva) mechanical digestion increases the surface area of the food by smashing and grinding, which in the chemical digestion that follows increases its exposure to digestive juices. Chemical digestion in f.ex the stomach is thus enhanced
Once in the stomach, more chemical and mechanical digestion occurs. The crushing and breaking action of the stomachs contractions with HCl help not only break down food, but also lend a hand in converting pepsinogen to the enzyme pepsin. This enzyme in the stomach takes the roll of the chemical digester, and breaks certain peptide bonds, thereby breaking up proteins in the stomach. Partly digested food from the stomach now travels to the small intestine…
Mechanical digestion happens in only in 2 of your digestion organs mouth and stomach. Mechanical digestion is the mechanical way you digest your food for example when your eating your teeth are mechanical digesting your food by making your food smaller by chewing on it your not changing your food in any way that only happens chemical digestion is happening.Another example of mechanical digestion is in your stomach when the food is bong to the…
Chemical and mechanical ingestion take place in the mouth. Chemical and mechanical digestion also take place in the stomach. Chemical digestion takes place in the small intestine. Ingestion, digestion then absorption. In the mouth, both chemical digestion and mechanical digestion happen. The mechanical part is your teeth crushing the food into smaller pieces. The chemical part is when the salivary glands give off a special fluid that contains enzymes. When food enters the stomach, an…
Mechanical digestion occurs in the mouth as your teeth are "mechanically" breaking up the food. The hydrochloric acid in your stomach continues digestion through chemical means. Also, saliva in your mouth is also an enzyme that is used in digestion, so technically you have both, mechanical and chemical digestion occurring in your mouth.
Mechanical digestion is the breakdown of food through chewing, mixing, or churning. Mechanical digestion occurs in the mouth and stomach. The food is physically torn apart through the teeth, tongue, stomach contractions, etc. This is counterpart to chemical digestion, where acids and other enzymes chemically pull apart the food.
food undergoes two types of digestion in the stomach.One is mechanical digestion which is the the churning of food or peristalsis.Second is chemical digestion which involves enzymes (protease) breaking down substances in simpler forms.the food after digestion in the stomach becomes a thick liquid which is then sent to the small intestine.
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.
The stomach is a large sack full of digestive enzymes. Its role in digestion is both mechanical and chemical. The stomach is full of enzymes which break down food and kill bacteria. The stomach also moves around, churning its contents. This action breaks down food mechanically during digestion and is the last form of mechanical digestion in the digestive process.