When starch enters the mouth, it is acted upon by salivary amylase which is an enzyme that breaks starch down into maltose. It is not fully digested yet.
In the stomach, low PH levels caused by the hydrochloric acid denatures the salivary amylase, rendering it useless for starch digestion. The starch remains in the stomach, until it's churning action turns starch into chyme (liquefied food) The purpose of this is to increase the surface area to volume ratio, so as to increase the efficiency of enzyme action.
The starch leaves the stomach, and enters the small intestine. In the intestine, it is acted upon by the intestinal amylase, and the pancreatic amylase, which fully breaks down the starch into maltose. Afterwhich, the maltose is acted upon by maltase, which breaks it down into glucose. When this is done, it can be absorbed easily by the villi into the bloodstream.
Glucose is formed. Then to simpler form called maltose. Next it becomes sucrose, galactose, and fructose. I think...
Digestion
Chemical digestion of the starch starts in the mouth. Ptylin is the enzyme, which is secreted in the saliva. Ptylin breaks down the starch. This process continue in the stomach till acid neutralize the ptylin.
it contains enzymes which break the starch down to sugar
It doesn't ---------------------------------------- Not sure where that guy ^ got his information, but in Biology 11 you learn that it DOES. Starch is turned to glucose during chemical digestion, and it begins in the mouth. ---------------------------------------- I'm in year 9 and I know that!
False. Digestion (at least starch digestion) begins in your mouth. Saliva helps begin the break-down process as you chew. Chewing is also a means of the start of the breakdown process of food going into your GI tract.
The digestion of fat will begin in the small intestine, whereas the digestion of starch which begin in the mouth (the mouth contains the enzyme amylase, which helps break down starch)
glucose.
In the mouth.
yes temperature affects starch digestion, amylase work harder and better at higher temperatures
I don't think of it as an organ, but chemical digestion of starch begins in the mouth, using saliva.
In chemical Digestion, starch and fat are digested by the enzymes in saliva
The digestion of starch begins in the mouth during mastication. The ptyalin enzyme (an amylase) converts the starch to sugar .