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At what pH did you see the highest activity of salivary amylase?
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∙ 15y ago
pH of about 7
Wiki User
∙ 15y ago
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What are starch molecules broken up by?
Starch is typically broken down by the enzyme amylase pretty effectively. To check to see if the amylase is working properly, you can add the enzyme in a solution of starch and constantly check the concentrations of starch at certain intervals of time using a spectrometer.
Amylase - urine?
DefinitionThis is a test that measures the amount of amylase in urine. Amylase is an enzyme that helps digest carbohydrates. It is produced mainly in the pancreas and the glands that make saliva.Amylase may also be measured with a blood test. See: Amylase - bloodHow the test is performedA urine sample is needed. The test may be performed using a single urine sample or a 24-hour urine collection. For information on how to collect a sample, see:Clean catch urine test24-hour urine collectionHow to prepare for the testYour health care provider may tell you to stop taking certain drugs that can affect test results. Drugs that can increase amylase levels include:AsparaginaseAspirinPentazocineCholinergic agentsCorticosteroidsIndomethacinLoop and thiazide diureticsMethyldopaCodeineMorphineBirth control pillsHow the test will feelThe test involves only normal urination, and there is no discomfort.Why the test is performedThis test is done to diagnose pancreatitis and other diseases that affect the pancreas. Your doctor may also order this test to see how treatment for such conditions is working.Normal ValuesThe normal range is 2.6 to 21.2 international units per hour (IU/h).What abnormal results meanAn increased amount of amylase in the urine is called amylasuria. Increased amylase levels may indicate:Acute pancreatitisAlcohol consumptionCancer of the pancreas, ovaries, or lungsCholecystitisEctopic or ruptured tubal pregnancyGallbladder diseaseInfection of the salivary glands (mumps or an obstruction)Intestinal obstructionPancreatic duct obstructionPerforated ulcerDecreased amylase levels may be due to:Damage to the pancreasKidney diseasePancreatic cancerToxemia of pregnancyWhat the risks areThere are no risks.ReferencesOwyang C. Pancreatitis. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 147.
Where is antimony found in nature?
Apparently the highest concentration of antimony is in China. Wikipedia has an article on the subject - See related link.
Which type of coal has highest heating capacity?
Answer 1Low-volatile bituminous is having highest heating capacity (33412 KJ/Kg). Answer 2Anthracite. Answer 3The anthracite coal heat capacity is 29000 KJ/Kg that is less than Low-volatile bituminous. See link below.
How many milligrams are there in 100000 HUT?
A HUT unit is a measurement of protease activity. See the chart in the related link, which also says, "Enzymes are best measured not by their weight but by the work they are capable of", so your question does not have an answer.`
Why is a blank used in salivary amylase?
for recalabations of equipment to to see a significant change ie reaction
What enzyme does saliva produce?
The enzyme amylase (for breaking down starch) is produced by the salivary glands along with water and mucus
what is the purpose of the digestive glands?
Salivary glands produce a clear liquid which moistens food as it is being chewed. Without moisture the food is like chewing sand. The glands also produce an enzyme. Most people, but not all, produce an enzyme called salivary amylase which begins to break down starches/complex carbohydrates before they enter the stomach. A test to see if you have this enzyme is to hold a piece of bread or rice cake..in your mouth and see if you sense a sweeter taste. If you have salivary amylase, the starch will become sugar in your mouth.
What is the function of th salivary glands in digestion?
Salivary glands produce a clear liquid which moistens food as it is being chewed. Without moisture the food is like chewing sand. The glands also produce an enzyme. Most people, but not all, produce an enzyme called salivary amylase which begins to break down starches/complex carbohydrates before they enter the stomach. A test to see if you have this enzyme is to hold a piece of bread or rice cake..in your mouth and see if you sense a sweeter taste. If you have salivary amylase, the starch will become sugar in your mouth.
What happens to a beef burger when its being swallowed?
A burger is broken down mechanically by biting into it. The food in the mouth sets off salivary glands that secrete salivary amylase, which breaks down amylase in the burger. When the food is broken down enough, the tongue shapes the food in a bolus, or a ball. The bolus is pushed back to the pharynx at the back of the throat. The food stimulates the opening of the flap so the good goes down the esophagus, rather than the windpipe. Because of peristalsis, rhythmic waves created by muscles in the throat, the food slides easily down the digestive tract. Salivary amylase continues to break down the starch all the way down the esophagus
What is the biochemical function of amylase enzyme in plants?
No. Amylase is produced in the body by the salivary glands and the intestines to take part in the digestive process. That answer is incorrect! Amylase is indeed a digestive enzyme for animals, but it is also present in plants. Though mainly found in cereal seeds like wheat, amylase is found throughout the plant kingdom. It is most usually present in germinating seeds, and is used to break the polysaccharide starch in the endosperm/ haustorium into more usable, smaller sugar chains like maltose. See the third to last paragraph on this page: http://plantphys.info/plants_human/seedgerm.html
What is then enzyme in human saliva?
amylase see more at the related link
What is a physical description of amylase?
It looks like a substance that you will see in the human body.
What triggers the production of salivary amylase?
Activity in the digestive tract begins before food even enters the mouth. As the meal is being prepared, sensory input such as the sight of a turkey being lifted out of the oven, the clatter of the table being set, and the smell of freshly baked bread may make your mouth become moist and your stomach begin to secrete digestive substances. This response occurs when the nervous system signals the digestive system to ready itself for a meal. This cephalic (pertaining to the head) response occurs as a result of external cues, such as sight and smell, even when the body is not in need of food. The mouth is the entry point for food into the digestive tract. In the mouth, the taste of food continues the processes begun by the smells, sights, and sounds of food preparation. The presence of food in the mouth stimulates the flow of saliva from the salivary glands located internally at the sides of the face and immediately below and in front of the ears. Saliva contains the enzyme salivary amylase, which begins the digestion of carbohydrate. Salivary amylase can break the long sugar chains of starch in the bread of the turkey sandwich into shorter chains of sugars. Saliva also lubricates the upper gastrointestinal tract and moistens the food so that it can easily be tasted and swallowed. As you can see, Amylase is one of the saliva components,to know what stimulates amylase production you should know what stimulates saliva production. saliva production is controlled by parasympathatic and sympathatic nervous system (not by GI hormones), and is unique that is increased by both....parasympathatic is more important, however. The parasympathatic stimulation (through cranial nerves VII & IX) increases saliva production by increasing transport processes in the acinar and ductal cells and by causing vasodilation. Now you have the following...food or smell induces the parasympathatic, causing ACh release, cholinergic receptors on the acinar and ductal cells receive it inducing a second messenger called inositol 1,4,5-triphosphate (IP3) and also increased intracellular Calcium ions, all of that activates the acinar or ductal cell to secrete saliva including the alpha-amylase. The sympathatic does the same story with smaller effect and different names...norepinephrine activates adrenergic receptors, and the second messenger here is cAMP. I hope I made it clear enough for you.
If a starch was incubated with amylase at zero degrees Celsius would you expect to see any starch?
no
What secrets salivia?
Your salivary glands. "The salivary glands secrete saliva into the mouth to assist in digesting foods. Humans have 3 pairs of major salivary glands: 1) parotid glands, 2) submandibular glands, and 3) sublingual glands. The parotid glands are the largest salivary glands and are located in front of the ear in the cheek area and slightly over the jaw line. The smaller submandibular glands are located under the jaw and the sublingual glands, the smallest major salivary glands, are located under the tongue. Hundreds of minor salivary glands, each about the size of a grain of sand, exist and line the mucous membranes inside the mouth." - See more at: (see related link)
If starch was incubated with amylase at 0 degrees celsius would you expect to see any starch digestion?
no
