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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
These are three integrated systems. The respiratory system exchanges blood gases, the most important of which is supplying the body with oxygen. The cardiovascular system carries these gases to the individual cells. The muscular system (the heart itself is a muscle also) keep the body in motion.
Why does the body need digestive enzymes to survive?
Enzymes are globular proteins which catalyze almost all the biochemical reactions in our body,without being chemically changed.If enzymes cease to exist, these reactions would proceed, but way too slowly for life to continue.So, enzymes are necessary for cell survival.
What bacteria do you have in your digestive tract?
MILLIONS of them, not all cataloged or identified even today. You are outnumbered even within your own skin; there are more bacteria and other non-human cells in your body than there are human cells.
The process of breaking down food into usable materials?
Digestion is the process of breaking down food into usable materials, and is one function of the digestive system. The other function, absorption, makes these materials available to all cells in the body.
Which layer of the alimentary canal is responsible for segmentation and peristalsis?
the smooth muscles are responsible for perstalsis and segmentation, so that means its the muscularis externa. :)
yes they do ----------------------- how they digest- if interested... credit: http://answers.yahoo.com/question/index?qid=20080314060010AAHwv5K OKIM IM's original work Paramecia feed on microorganisms like bacteria, algae, and yeasts. To gather its food, the paramecium uses its cilia to sweep the food along with some water into the cell mouth after it falls into the oral groove. The food goes through the cell mouth into the gullet, which is like the stomach. When enough food has accumulated, it breaks away and forms a food vacuole. The food vacuole travels through the cell, through the back end first. As it moves along, enzymes from the cytoplasm enter the vacuole and digest it. The digested food then goes into the cytoplasm and the vacuole gets smaller and smaller. When the vacuole reaches the anal pore the remaining undigested waste is removed.
In the case of paramecium, ingestion is getting the food particle into the food vacuole. Digestion is the enzymatic breakdown of food.
What are the comparisons between the human digestive system and the pigs digestive system?
The human and pig digestive system are very similar.That's why they are what you dissect in biology. Their digestive system includes all the same organs that we have.The esophagus,stomach,liver,gall bladder,spleen,pancreas,and the small and large intestines. The functions of the organs are the same as well.A pigs large intestines basically balled while a humans is wound the inside of the body. THIS IS ANSWERED BY ENILY JOHNSON A 12 YEAR OLD THAT QUESTION WAS EASY HOW DID U NOT KNOW THAT
What body system takes in and absorbs nutrients and eliminates waste?
The digestive system both takes in and absorbs nutrients, and eliminates solid waste. The main organs are the mouth, esophagus, stomach, small intestine, and large intestine.
How do humans get their nutrients?
Carbon, Hydrogen, Oxygen, Nitrogen, and sometines Sulphur and phosphprus make up the majority of biochemical compounds. These are essential. This does not include minerals or metals such as iron used by hemes for oxygen transportation
Do the small intestine make intestinal amylase?
Yes. The pancreas produces another form of amylase called pancreatic amylase that acts on polymers of glucose. This enxyme is secreted inot the duodenum of the small intestine.
Which enzymes are used in the duodenum?
In the duodenum there is pancreatic lipase. This is an enzyme that breaks down fats into small enough pieces that you can absorb it to use it for energy/fuel.
To be technical, fats in the duodenum are emulsified by bile (produced in the liver) and mixed micelles are formed (small "balls" of triglycerides, cholesterol, phospholipids, etc.). Pancreatic lipase will break down triglycerides in the mixed micelles into monoglycerides and free fatty acids. The enterocytes lining our small intestines will absorb monoglycerides and fatty acids.
How do Nutrients get into our bodies?
Pancreas squirts enzymes into the small intestine to break down the fat, protein and starch into the chemical soup that an hour ago was something else, cells of small intestine itself produce enzymes to complete processes. As enzymes do their work smaller and smaller fragments are liberated from the chemical soup and are absorbed into the blood and lymph through the cell's of the small intestine wall. Vitamins and minerals are absorbed here. they all enter the bloodstream to nourish the tissues. reference: Nutrition Concepts and Controversies
The food goes into your mouth and gets mushed up by your tongue and teeth. Then it goes down a big long pipe into your small intestine. The enzymes in the intestine break up the larger parts of the food that your mouth couldn't do. All of the small pieces of food go through the holes inside the wall of your intestine and into your blood pipe and around your body in your blood. The bits that can't fit through the holes get moved into your large intestine and get mushed together. After that the water gets sucked out of the food and the food comes out of your anus as feaces/poo.
What does the digestive system do with the food we eat?
Digestive system is important to us because it helps us to digest our food if we don't have food in our body then our living cells cant survive. Digestion means to break down the larger food particles into smaller food particles.
What is the system that breaks down and absorbs food?
The first task of the digestive system is to break down food into a fine pulp (mechanical digestion). When the food is physically broken down, digestive chemicals break the food down into small molecules (chemical digestion). The mouth is the organ in which the process of digestion begins.
(Google)
What is the system that breaks down food in the body?
First, it is chewed up in the mouth by teeth, then down the oesophagus (throat). Then, it is broken down by acid in the stomach, extracting the vitamins using enzymes. Afterwards, the things that aren't needed are stored in the intestine
and pushed out the anus.
Why do large food molecules have to be broken down into small food molecules?
Large food molecules need to be broken down into small food molecules so that they can be absorbed and utilized by the body more efficiently. Enzymes in the digestive system break down large molecules into smaller ones that can pass through the intestinal wall for absorption into the bloodstream. This allows cells to use the nutrients for energy, growth, and repair.
What role do bile salts play in the digestion of salts?
Functions of Bile juice
Bile juice reduces acidity of chyme. The food coming from the stomach has to be made alkaline for the pancreatic enzymes on act on them.
It kills the germs and bacteria which are present in food.
It helps in emulsificaton of fats. In emulsification, fat molecules are broken down mechanically into smaller droplets so that the enzymes responsible for their breakdown can act on them easily.
How Bile emulsifies fats
Bile is alkaline solution. Its molecules have dual nature (one end is attracted to water molecule while other is attracted to fat molecule). Thus its molecules remain in between water molecules and fat molecules (emulsification process).
If bile molecules were not present between fats and water, the fat molecules would be repelled by water molecules and be attracted to each other. The fat molecules would merge together because fats are insoluble in water. The merged fats would not be easily broken down with lipase (fat digesting enzyme).
So bile attracts the fat molecules and separate them from each other. It makes the fat digestion easier.
Bile is a yellowish substance made in the liver, stored in the gallbladder and is released when fatty food moves from the stomach into the duodenum of the small intestine.
The first step in undertaking any chemical calculation is to?
balance the equation.
calculate moles of product.
What is the primary function of a digestive system?
The primary function of the digestive system is to supply the cells of the body with nutrition. It does this by ingestion, digestion, and absorption. The waste materials that are not used are then eliminated.
To establish a colony in; settle: England colonized Australia.
The extension of political and economic control over an area by a nation whose citizens have occupied that area
it means to be a gangster
Crohn's disease is an autoimmune disorder that attacks the digestive system. Rheumatoid arthritis is an autoimmune disorder that attacks the joints.
When does the physical breakdown of food begins?
In the mouth of course, because you have to chew it ( mechincally) to have it go down easier
