Where does mechanical digestion and chemical digestion occur along the digestive tract?

What does the churning action of the stomach wall accomplish?

The churning action of the stomach wall accomplishes mechanical digestion. Mechanical digestion begins in the mouth and along with chemical digestion, ends in the small intestine.

Which organ does mechanical and chemical digestion begin?

mechanical digestion is when you are breaking down food almost by hand. you're breaking it down manually. an example of mechanical digestion is chewing. it begins in your mouth and ends once you swallow.

What part do muscle in digestion?

Peristalsis - the moving of food along through the digestive system.

Where does digestion of cereal Begin?

Digestion of cereal begins in the mouth. Mastication--chewing--breaks down the food. Saliva begins to break down carbohydrates contained in cereal grains. Digestion of cereal along with the milk continues in the stomach and small intestines.

How do the salivary glands work in digestion?

The salivary gland produces an important digestive enzyme, called amylase, that helps to break down starches and liquefy the food in the chewing phase of digestion. Once swallowed, the food is exposed to more enzymes and processes that complete the digestion as it travels through the various areas of the digestive tract.

Is the wedging tree roots along natural joints in granite a chemical or mechanical?

chemical weathering

What type of tissue accounts for the movement of food along the digestion tract?

Smooth muscle contractions account for the movement of food along the digestive tract.

How does mechanical digestion and chemical digestion take place in the mouth and stomach?

Mechanical digestion is the actual physical break down of food into smaller pieces. One example of this is mastication (chewing) which occurs in the mouth by the teeth, which act to cut and grind food into smaller pieces. This makes them easier to later digest as it increases the SA of the food molecules. A certain type of food is made of lots of different chemicals but certain chemicals are found in the center. The chewing breaks it apart and exposes these chemicals so that they can be broken down quicker/easier. Another form of mechanical digestion is peristalsis; succesive contractions of muscles in the alimentary canal which form a wave of constriction that moves food along. In the stomach, there are three layers of muscle (which is unique as the rest of the alimentary canal only has 2). It has longatudinal, circular and oblique muscle which together contract and relax to form the churning motion which mixes food around. This aids in digestion as it slightly breaks up the food and also increases the contact the food has with enzymes and acids in the gastric juice. Bile salts (which are found in bile secreted from the liver) also act to emulsify large fat globules into smaller fat droplets. Its sort of like how detergent works and it breaks up all molecules and then puts a 'soapy' shield around them so they cant join back together. This increases the SA of the molecule of fat so that enzymes (particulary pancreatic lipase) can act on it and break it down to smaller, simpler forms are body can absorb. Chemical digestion on the other hand, is the chemical break down of foods into smaller pieces. An example of this is how enzymes break them down. In particular, the enzyme salivary amylase is found in our saliva which acts to break down starch into simpler forms (polysaccharides --> dissaccharides). Another form of this digestion is how the HCl acid in the stomach helps to break down food and destroy any microorganisms that accompanied the food.

Explain the difference between mechanical and chemical weathering?

In chemical weathering, there is a chemical reaction that causes weathering. Mechanical weathering is caused by fire, abrasions of water along a surface, animals, or freezing and thawing.

What is the name of the mechanical process that breaks up food in the stomach?

The name of the mechanical process that breaks up food in the stomach is known as peristalsis. During peristalsis, the muscles of the digestive system contract and relax, moving food along the gastrointestinal tract.

Which type of digestion takes place in your esophagus?

in the esophagus or well known as the gullet are muscles align on each side to move it towards the stomach.anything else just search nur dini on facebook to ask for anymore qns or you just wanna add me. BYE!!

How does the stomach mechanically digest the food?

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, through the pyloric sphincter, and is know as chyme. copyright. all right reserved It doesn't the only kind of digestion is Chemical Digestion which is caused by your Stomach Acid. :) Mechanical digestion does occur in the stomach along with chemical digestion. The stomach squeezes the chyme and that is considered to be mechanical digestion.