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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 happens to dietary fiber during the digestion in the body?
It isn't completely digested and makes up the bulk of the feces in the colon.
How does food that is not digested get out of the body?
The rest of the food that is not absorbed into your body is defecated.
Food moves through the digestive tract by wavelike contractions called?
Peristalsis is a series of involuntary smooth muscle contractions along the walls of the digestive tract that move food through the digestive tract
peristalsis
Which takes longer to digest sugar or beans?
beans take longer time to get digested as they are proteins and complex carbohydrate while sugars is already refined and processed beand also has fibre and fibre takes long hours to get digested.
How are nucleic acids digested?
Nucleic acids are first broken down in the duodenum of the small intestine. A hormone called cholecystokinin stimulates the release of pancreatic juice from the pancreas, and a component of this pancreatic juice is a group of enzymes called nucleases. Nucleic acids are then digested by these nucleases into single units called nucleotides.
When do the lipids begin to be digested?
Digestion begins the instant you swallowed the food you just chewed up. Maybe not the instant but it begins when the food reaches your stomach.
How many grams of protein can be digested in one meal?
This is hugely dependent on size, weight, metabolism, body composition, and a hundred other factors of any unique individual's health. A single number can't really be given, but as I'll cite from web MD an average adult male should have about 52 grams of protein, and an adult female requires about 46 grams of protein per day. This is highly variable with each person and their specific needs of course.
Discuss the process of respiration?
Respiration involves the processes of inhalation and exhalation. It is used to control breathing through the exchanges of gases and distribution of oxygen.
The answers given here are wrong.The correct answer is assimilation.
What squeezes food down to stomach?
Your esophagus moves it so even when you eat upside down it will still go to your stomach. The series of muscle relaxations (infront of the bolus) and contractions (behind the bolus) that moved food down the esophagus is called peristalsis.
How does a cheese and ham sandwich go down in your digestive system?
The same as any other food.... by you swallowing it.
Why does food take so long to digest?
Protein. Protein needs to be broken down into amino acid chains, and those chains need to be broken down in order to be absorbed by the body. Carbs are basically simple sugars used for energy.
What directs chewing food down the tube located in the throat?
uvula
There are three steps to swallowing food effienctly .
1) During the first stage of swallowing, your tongue moves the food around your mouth so that it can be chewed. Chewing helps to break food down into smaller chunks, while mixing it with saliva. Saliva makes the food moist and easier to swallow.
2)Your tongue pushes food or liquid to the back of your mouth. The nervous system triggers the swallowing reflex, activating the muscles that push the food down your throat towards your oesophagus (tube running from the throat to the stomach). During this phase, the larynx (voice box) closes in order to prevent any food or liquid from entering your lungs.3)Food or liquid enters your oesophagus. In a healthy person, muscles quickly move the food or liquid through the oesophagus and into the stomach.Where is the bile produce which components of food does it help to digest?
it is produced in the liver.it helps breaking fats into smaller bits called emulsification of fat.
Do humans have a complete or incomplete digestive system?
Humans have a complete digestive system.
Incomplete Digestive System: one opening that takes in food and expels waste
Complete Digestive System: two openings and a food tube to make sure there is no mixing of food and wastes.
Are teeth an important part of the digestive system?
Absolutely! Without teeth, the varieties of food we could eat would be extremely limited. Nothing hard, crunchy, or bigger than a dime.
That eliminates most fruits and vegetables, fiber, and meats are pretty much out of the question. Consequently, our nutritional status would not be what it is.
A study published several years ago indicated that people who wear full upper and lower dentures (edentulous) have a life expectancy five full years less than people with all natural teeth. The authors speculated that the difference was a result of lower nutrition in those who had dentures.
If you want to know how limiting having no teeth would be, spend a week only eating those foods that you can suck through a straw. If you want, go ahead and use an electric blender. See how yummy bacon and eggs taste after passing through a Cuisinart.
What happens to Bacteria that make it into the digestive tract?
Bacteria begin to colonise the gut soon after birth, they play a key role in training the immune system to recognise pathogenic and non-pathogenic bacteria. Just having the bacteria there prevents other pathogenic species from taking up the same space and so prevents some diseases. They also produce some vitamins notably biotin and vitamin K and some ferment carbohydrate foods which we could not other wise digest turning them in to short chain fatty acids.
