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mouth? because chemiclal form took place in the stomach and if we say mechanical it is something to do with grinding, swallowing and choking. :)
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∙ 10y ago
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Compare mechanical and chemical digestion?
actually the mechanical digestion takes place first in our body that is the whole process of digestion we normally study. where the whole process is of getting things like glucose, minerals, proteins etc.. but the chemical digestion takes place at the cellular level means in the cells that is the break down of glucose in getting energy to work or metabolism of the cells
Which form of mechanical digestion begins in the mouth?
Chewing on the food
Where does the mechanical digestion the beginning?
This form of digestion starts in the mouth with the salivary gland witch break down food
Chewing and churning are examples of what type of digestion?
Chewing is a mechanic digestion as i found out here on WikiAnswers. So i hope i have answered you question those of you who have needed this little bit of information x.what the heck are u talking about?
What two processes of digestion begins in the mouth how do they differ?
Salivary Amylase helps digest starch while in the mouth as a chemical digestion. Chewing is another form of digestion, but its mechanical
What process increases the surface area of foods prior to chemical digestion?
Mastication, or chewing, is a form of mechanical digestion that increases the surface area of foods prior to chemical digestion.
Where and how does hydrolysis occur during digestion?
In your mouth, amalyze chemically digests new food through your spit. This is a form of hydrolysis in digestion.
What is role of stomach during digestion?
The stomach serves too major roles in digestion. It is a place where chemical digestion takes place with stomach acid helping to break down food. It is also a place where mechanical digestion takes place. The stomach muscles expand and contract to crush and grind food.
Why does digestion have to occur in heterotrophs?
because they eat things in a form that they cannot use, therefore they must digest it to transfer it to a usable form.
Difference between physical digestion and chemical digestion?
Physical (also called mechanical) digestion is when you use your teeth to mash up food. You are physically breaking the food into smaller pieces. However, chemical digestion would be what your saliva or stomach acids are doing. They are breaking down the food and transferring different parts of it (such as lipids etc.) to the different parts of your body that need it.
Contrast mechanical digestion with chemical digestion and give an example of each?
Physical digestion is, basically, "mashing." The food is ground up (by the teeth), mashed into a paste (by the stomach), and so forth. It's mixed with other foods in the process, but no new molecules are produced. Chemical digestion involves chemical reactions, and new molecules ARE produced. The action of enzymes in saliva, gastric juices, and so forth is a form of chemical digestion.
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.
