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Let's use some examples. When you buy a TV, the intention is to watch some shows. If you leave it in its box and never plug it in, the television never performs the action for which it is intended. If you buy a telephone but never plug it in and you don't have service anyway, the phone becomes an object that cannot perform its function.
When you buy food at a store and bring it home, you know that each item contains nutrients. But, if you let the food sit, it never releases its nutrients. Through mastication (chewing), humans begin the process of breaking down food to release its nutrients and gain benefit from its calories and nutrients.
Digestion begins in the stomach, with the help of the gallbladder, by adding acids and bile salts to the food. This turns food to semi-solids. When it enters the small intestines, fluid is pulled from the cells into the small intestines. This begins to turn the semi-solids into a watery mush. Only then can the cells pull the nutrients and calories back to the bloodstream and into the cells.
But, the body can't use all of the food-mush we consume. Some of it is fiber, which helps the intestines but does not break down for use by the cells. If we continue to eat without expelling the previous meals, the body would become bloated. Eventually, we'd die.
So the body pushes the remaining mush into the large intestines. There (and especially in the colon), the body pulls back out most of the excess fluids. This makes the mush more solid. It is called stool, and takes the shape of the large intestines (roundish, long) as it becomes solid and continues to move downward.
The body processes the excess fluid through the kidneys. And it pushes out the stool as waste.
This complex process uses several body systems in an intricate balance to help the organism (the human body) to survive.
What else can I help you with?
Why do kids food vary in their need?
Digestion
Why goat no need of gall bladder?
Goats do need their gall bladder to aid in digestion.
How do proteins help in digestion?
Proteins need an acid environmet to digest.
How does glucose travel from the digestion system to the cells that need it?
It is carried in the blood.
Why you need water and fiber in your diet?
For hydration and the metabolic process and digestion
The digestion and utilization of which nutrient creates the greatest need for osomorgulation by the kidneys?
Protein!
Why does your body need acids?
To break down food for digestion in the sm. intestines.
What are the four digested stages?
The 4 stages of digestion areIngestion (eating and consuming food)Digestion (Digesting our meals)Absorption (absorbing the nutrients we need form the food)Elimination (getting rid of the waste that our body doesn't need)
What are the different steps in the process of nutrition?
The steps of the nutrition process include ingestion, digestion, absorption, assimilation, and egestion. Sometimes people need to take supplements to aid their digestion.
What type of foods don't require chemical and physical digestion?
Foods that are already broken down into their simplest forms, such as liquids, do not require chemical and physical digestion in the same way that solid foods do. These foods can be readily absorbed by the body without the need for extensive digestion processes.
How is machanicle digestion different for cheminal digestion?
mechanical digestion is with your teeth , chemical digestion is in your stomach and small intestine.
Do zebras get heartburn?
No. Never. They do not need stomach acid, which is there to aid in the digestion of meat. Zebras do not eat meat.
