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The optimum pH of salivary amylase is 6.8 (slightly acidic).
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∙ 15y ago
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Salivary amylase breaks down starches?
breakdown of amylase and amylopectin into disaccharides and trisaccharides
How will the time taken for starch to digested in amylase be affected by the temperature?
investigate the relationship between reaction temperature and the effectiveness of the Enzyme amalayse on starch
Where does amylase act in humans?
Amylase is produced by the salivary glands and works in the mouth to break down chardohydrates(digests starch into maltose). It only works for a short amount of time because when you swallow the food it is inhibated by the acid in the stomach. Amylase works best at a pH of 7.
What is the PH scale of the mouth and why?
The pH of the mouth is slightly basic (about 7.4). This is because an enzyme called salivary amylase that breaks down carbohydrates can only work in a slightly basic conditions. If the pH was drastically reduced by means of acid (coke and other sodas) Not only will amylase denature, but the bacterias that are living in your mouth will start to rot your teeth.
What is end product of salivary amylase?
Salivary amylase is found in the mouth and has a pH of 7. It's pH is neutral because, obviously, it is in the mouth and we don't want to have an acid or base in our mouth now do we? It's substrate (or what it acts upon) is usually starches and the products of this action usually contains maltose. Hope this helps! Source: My IB Biology HL class...and my textbook. :D
What pH does it acts salivary amylase works best in?
About 7.4 pH.
Does acid and base pH value has salivary amylase stops?
Yes,amylase work best in neutralized medium.
At what pH did you see the highest activity of salivary amylase?
pH of about 7
What is the opitmal pH for salivary amylase?
identify two pH values at which salivary amylase activity stop?
How is salivary amylase active in the stomach?
Amylase is not active in the stomach, the environment is too acidic. This is why the pancrease produces and secretes amylase into the duodenum after food leaves the stomach, to replace the amylase secreted by salivary glands and denatured by stomach acid.
What is the affect of vinegar on salivary amylase?
All enzymes have an optimal pH in which they can function, the addition of vinegar (an acid) will denature the protein in the enzyme, and it will be unable to catalyze a reaction.
Does salivary amylase contain sodium hydroxide or sodium carbonate?
No, absolutely not, it will not 'work' in alkaline (basic) solution. Salivary amylase (ptyalin) inactivates rapidly outside of its optimum pH 5.6-6.9
Does the optimum pH of salivary amylase differ from plant amylase?
Yes. Some plants are found to have amylase as well, such as those plants with high levels of starch, and they are the same types of amylase.
Would amylase be active in the stomach?
Salivary amylase works well around pH 7 (inside the mouth), but inside the stomach are gastric juices which contain HCl. Since the HCl drops the pH of the solution significantly, it denatures the amylase so that it will no longer function as it normally would, breaking down starch and glycogen.
What are the best conditions in pH for amylase protese and lipase?
Amylase has an optimal pH range of 6.7 - 7.0 and an optimal temperature of around 37 degrees Celsius or 98.6 degrees Fahrenheit. This is what would be expected of an enzyme that needs to be in its most active form in the saliva of the mouth.
What is the Site of production of Pancreatic amylase?
The salivary amylase works mostly in the mouth and in the esophagus. Once it reaches the stomach, the high pH denatures the salivary amylase and cannot be used. However, once the food reaches the duodenum the pancreas releases pancreatic amylase to continually digest carbohydrates.
Why does amylase work in the mouth but not the stomach?
Because of enzyme specificity, enzymes require certain temperatures and pH's to work. Now I don't think there is a temperature change, but there is most certainly a pH change as the mouth has a near neutral pH while the stomach has a more acidic pH of about 2-3.
