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Digestive System
Digestive System is the category for questions regarding the breakdown and absorption of food-stuffs in our alimentary canal. Questions about the stomach and intestines can be included in this category.
7,599 Questions
What is the tube through which food moves via peristalsis but no digestion takes place?
The esophagus moves food via peristalsis, but no digestion occurs in the esophagus. It connects the mouth and stomach.
How long does meat stay in your system before you digest it?
Red meat can stay in your system 3 to 4 days after consumption and longer in digestive tract. If you are thinking of going vegan you can take a fast to clean your digestive tract out. The Nag Hamadi says to take a 7 day fast and for the cleaning out completely use an enema that is made up of distilled water placed in the sunshine until warm then apply each day starting with day 1 and on each consecutive day until the water comes out clean. This takes about three or four days but you wash your intestines out of meat residue. Make sure you hold the enema in as long as possible. Use distilled water for hydration during fast. You may also use fruit juice on this fast but it will take longer for residue to come clean. You must take care not to go beyond your limit with this fast. You can practice and build up to the fast but when you use the enema it should be with the seven day fast and not on practice runs. you will find the fast in the gospel of peace of The Nag Hamadi
Why are enzymes important chemicals in digestive juices?
to break down larger molecules into simpler molecules of food components
Why are protein digestive enzymes produced and released in an inactive form?
In the case of protein digesting enzymes, known as endopeptidases, such as those secreted in the stomach (pespin), it is obvious. If they were secreted active they would digest the glands which secrete the enzymes themselves (gastric glands).
Instead they must be secreted in an inactive form, which once in the stomach and exposed to HCl acid and other pepsin enzymes the pepsinogen activates and begins digesting protein.
What would happen if your food got stuck in your esophagus?
The trachea is the breathing tube that is inside your throat and chest that leads from the mouth and nose to the lungs, so, just taking a stab in the dark here, but I would say it would be quite difficult to breathe if you were absent of this helpful organ.
How does food get broken down in your stomach?
Your body needs nutrients so the stomach breaks down the food. Then in the small intestine, the nutrients and waste are separated. The nutrients helps the body and the waste come out the other end.
What are two different ways food is digested?
Food reaches the stomach through the oesophagus after it is ingested. It enters the stomach throught the cardiac sphincter, a band of circular muscles that allow the entrance of food substances into the stomach. the food in the stomach is then acted upon by the gastric gland present in the stomach that secrete gastric juices- HCl, renin and Pepsin. Pepsin acts on the proteins present in the food to convert them into smaller molecules called peptides. This action of pepsin requires the presence of Hcl acid as pepsin works better in an acidic medium. In this way, food is broken down. Moreover, the stomach in the mean time performs peristalsis, the rhythmic contraction and relaxation of muscles. This also results in breaking down of food.
What role does bile salt play in the digestion of fat?
Bile assists the digestion of fat.
Bile separates fat molecule from one another and prevents them from clumping back together. This makes them more susceptible to actual digestion by a pancreas enzyme called pancreatic lipase.
further, bile is an alkaline and can be used by the body to neutralize digestive acid.
seriously... if you reeeally wanted to know that then why don't you try it yourself.
What organ is not needed in the digestive system?
The esophagus because the esophagus carries the food to the stomach.
Also the Large intestine. The only thing that occurs here is absorption of water,
salts, and minerals. This organ is about 3ft long.
What food molecules go into the blood?
The small molecules such as digested fat, carbohydrates and proteins.
What are the effects of junk food on digestive system?
Obesity can increase the risk of gastroesophageal reflux and esophageal cancer. Obesity can increase the risk of liver disease (non-alcoholic fatty liver).
Kill obesity before it kills you
It is the toxic mischief of the flesh itself.
Experts has studied the reasons why there are an increasingly amount of young people who has died for decades, and the explanation seemed apparent.
Carrying all that extra weight puts a gravely strain on the heart and other organs. It not only contributes to the arthritis and sleep apnea, it is a minor hazard compared to the complex and deceitful damage wrought by the oily, yellowish globs of fat that wraps human bodies like never before.
Fat tissues are not just a depot; in fact it is an alarm to other parts of our body. It is now recognized to be the body's biggest endocrine organ, and its sheer volume is impressive even in normal size people.
Standard percentage of fat for (trim) women - 30%
Standard percentage of fat for (trim) man - 15%
That is enough to keep someone alive without eating for 3 months.
The fat cell's main job is to store excess calories as fat. When people grow obese, their fat cells swell with fat and can grow up to 3 times the normal size.
Obesity is a huge and growing killer in the United States, just behind smoking. Moderately obese people live 2 to 5 years lesser than the average people. For the morbidly obese, the reduction in life span may be 5 to 10 years.
The greatest single threat caused by obesity is heart disease. People with a body mass index (BMI) of over 30, triples the usual risk. Researchers have confirmed that fat cells' chemical flood is a contributor to heart attacks, heart failure and cardiac arrest.
Undeniably, weight increases blood pressure. More weight also means the extra force needed to push blood through more blood vessels that is required to nourish the extra flesh. Fat triggers high blood pressure by narrowing the blood vessels in several chemical ways. It produces a substance called angiotensinogen that is a powerful constrictor and stimulates the sympathetic nerves to squeeze the circulatory system.
What organ of the digestive tract absorbs more nutrients than any other organ?
Your intestine absorbs more nutrition than any other organ. It is about 20 feet long. But the surface area for the absorption is very large. It is estimated to be about 2750 square feet.
Creamy semifluid mixture of food and digestive juices?
Its called Chyme. Its a mixture of food, at some extent semi-digested under the influence of Pepsin and hydrochloric acid, and saliva from mouth.
What is end product of amylase in digestion?
Amylase breaks down starch, and therefore the product of digestion is maltose.
Why after taking indigestion tablets do you burp?
The reaction of the acid in your stomach with the metal carbonate (usually calcium carbonate) in the indigestion tablet produces carbon dioxide gas. This needs to be released somewhere as we do not use it in our bodies.
Yes. Digestion is not depended on orientation of the person (or the astronauts would be really hungry!)
What foods last the longest in your digestive system?
Lipids (fats & oils), as they have the most complex structure to break down.
Simple sugars are the easiest, followed by complex sugars, then starch, then proteins, then lipids.
It can take a few minutes to absorb simple sugars, a couple of hours for starch, 6 hours for proteins and 8 hrs or more for lipids. That's why low fat diets can make people go hungry.
What is the process that results from the digestion of starch?
Starch is simply a carbohydrate or sugar. It is found in two forms: amylopectin and amylose. Both of these are polymers of glucose with α(1→4) glycosidic bonds. In humans, enzymes help break these down into single monomers of glucose and then are fed into glycolysis for many cells. After going through the glycolysis and the rest of cellular respiration, the body ends up harnessing the energy of breaking down this glucose into ATP , which functions as the major energy currency of a cell.
