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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
its a word stupid daaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!!!!!!!!!!!!!!
jeez y r people so rude, it is the chemical process that splits a molecule by adding water
How long does it takes to digest a gum?
it take about 24- 72 hours to pass through you. if you were to actually digest it, it would take up to 7 years.
How did the digetive systerm and the circulatory systerm work together?
The process of producing and delivering energy to the cells of the body shows the interconnected relationships that exist with the systems of the body. The digestive and circulatory systems work together to ensure the body has enough fuel to serve the body's needs. Other systems of the body such as the endocrine and respiratory systems also participate in different roles.
DigestionDigestion begins as soon as you start eating. Enzymes in your saliva start the process of converting food into energy. Food will then travel to the stomach via the esophagus. There, digestion continues for another two to six hours, depending upon the type of food you ate. This process reduces food into molecules that the body can then use for producing energy. Most nutrient absorption occurs in the small intestine, while water absorption occurs in the large intestine.Your body relies primarily on carbohydrates and fats from the foods you eat for energy. The blood transports these chemicals to the cells of your body through the circulatory system. Within the cells are organelles called mitochondria. This is where energy production occurs through a complex series of chemical reactions to produce ATP, the energy currency of the body. The circulatory system will also ensure that the cells have adequate oxygen. Red blood cells contain a specialized protein called hemoglobin which will fulfill the body's requirements.
AdaptationsYour body can produce energy with or without the presence of oxygen. However, the former provides a richer source of ATP. To keep your body supplied with energy and oxygen, your circulatory system can divert blood flow as needed. When you are inactive, about 15 to 20 percent of your blood exists within muscle tissue. If you exercise strenuously, blood flow increases to 80 to 85 percent. This change happens so that your body can keep up with the needs for fuel and oxygen as well as remove waste products and carbon dioxide. Food and EnergyThe energy provided by the foods you eat is measured in calories. A gram of fat will provide nine calories, whereas both proteins and carbohydrates contain four calories. Availability will determine which source your body turns to for energy. However, during moderate activity at 60 to 80 percent of your maximum heart rate, your body will be in its maximum fat-burning zone, explains a 2009 study by the University of St Thomas in Minnesota. Your maximum heart rate is 220 minus your age. Fat provides more fuel, but it takes more energy to break the chemical bonds of fat molecules. During vigorous activity, the body relies more on carbohydrates because they are easier to metabolize for quick energy.P-
Llama have three stomachs so their food must pass through all three. They regurgitate their food and chew their cud like a cow.
How did the guild system work?
The guild system was an organization of artisans and merchants in medieval towns that regulated various trades and crafts. Each guild set specific standards for quality, training, and pricing, ensuring that members maintained a high level of skill and professionalism. They provided mutual support, offered protection for members' interests, and established rules for apprenticeship, allowing young individuals to learn a trade under experienced masters. Additionally, guilds often had significant social and political influence within their communities.
What macromolecule does saliva digest?
Saliva begins the chemical digestion of carbohydrates. The amylase in saliva breaks starch down into maltose. Another enzyme called maltase breaks maltose down into glucose....now your body can absorb it.
That is why when you eat bread, if you chew for a long time, it get's sweeter... It's because of the amylase in your saliva that makes the starches become sugar.
Where in the digestive system is the absorption of nutrients taking place?
Mainly in the small intestine. A small amount of absoprtion of nutrients can also take place in the stomach and large intestine.
What type of digestive do Chordata have?
Chordates are animals with backbones. Animal groups in the chordate phylum include fish, amphibians, reptiles, birds and mammals.
Animals with backbones are the most highly evolved groups of animals, the most complex and complicated. They have interior skeletons and have bilateral symmetry. They have more advanced brains.
An chordate takes in food through the mouth. The chordate has a mouth with a tongue. Some have teeth and some do not. It has a digestive system with stomach, intestines. Chordates eat plants and animals.
What are the main functions of the digestive system?
To process food and eradicate waste from the body. To help us get our food out of our system after we eat it. it makes it small and takes the nutrients out to store.
Where does the digestive tract begin?
Well, I don't know If I really understand the question but the digestion begins when the food enters the mouth, that is when teeth start crushing (mechanical), and the tongue forms the food into a ball, and salaiva covers the food and softens it, so it can go through the oesophagus.
I hope I answered your question. =)
Where is the enzyme screted and what does it digest fats into?
the enzyme that is secreted is lipase.
lipase is secreted in the pancreas where it is moved into the duodenum through the common bile duct. lipase is also secreted by the intestinal walls of the small intestine.there are funger like projections called villi. between 2 villi there are glandular pits where the succus entericus is secreted.lipase is in the succus entericus along with other enzymes.
lipase converts fats into fatty acids and glycerol.
by peristalsis which is the rhythmic, involuntary contraction of the smooth muscles in the walls of digestive organs.
What is the rate of peristalsis?
According to a study entitled The Treatment of the Different Foodstuffs by the Stomach, which appeared in Volume 12 of the American Journal of Physiology:
The rate of peristalsis noted when bread and milk were fed was stated as 6 waves per minute; a new contraction would thus appear every ten seconds. A considerably slower rate of peristalsis (4 waves per minute) was noticed after feeding a fat-suggesting that there might be characteristic rates for the different foodstuffs. Observations at different intervals after feeding were therefore made on various animals which had been fed various kinds of foods and the following results secured:
Average rate/minute Variations in rate
Fats 5.0 waves 4.0 to 6.0 waves
Proteins 5.2 waves 4.8 to 5.8 waves
Carbohydrates 5.5 waves 5.0 to 6.0 waves
In general, then, it seems that the average rate of peristalsis is 5.0 to 5.5 waves per minute, with variations noted from between 4.0 and 6.0 waves per minute.
How long does it take to digest a 20 ounzes of fluid?
If you are talking about a coke juice or soup, I would say 30 min to 1 hour at the most.
How does the structure of the villi assist with the utilization of digested fish?
how does the structure of the villi
Can cats digest corn starch and water?
Water, sure. But cats are obligate carnivores. They eat meat. Obligate means they MUST eat meat.
What is a simile for Small Intestine?
A simile is a figure of speech comparison which uses a connecting word such as like, as, so, than, or certain verbs such as resembles. So with that in mind, here are some examples:
The small intestine is like a long, small hose.
The small intestine curls around the inside of the body like a snake.
