Respuesta :
Answer:
I believe that passive diffusion is the process in the small intestines that requires a carrier and energy to transport nutrients into absorptive cells. It usually involves the movement if the molecules from a region of high concentration to a region of low concentration through a membrane.
Explanation:
Intestine epithelial is known as the single cell layer which helps in the formation of the luminal lining of the large and small intestines of the gastrointestinal tract. It is made up of simple columnar epithelial cells. Two important known function of the epithelial cell is :
1) Absorbing necessary substances in the body such as nutrients.
2) Restricted the entry of substances which is harmful for our body.
As the nature of its protective role, the intestinal epithelium helps in the formation of important component of the intestinal mucosal barrier.
The absorption of nutrients takes place by diffusion through the small intestine's wall.
Some of the nutrients that the small intestine absorbs include lipids, proteins, carbohydrates, vitamins, proteins, etc. The inner wall of the small intestine is lined with epithelial tissue.
In the small intestine, there are epithelial cells and they help increase the amount of surface area that is available for nutrient absorption.
The absorbed nutrients are then transported through the blood vessels to the organs in the body. They're then used in the building of complex substances that the body needs.
In conclusion, the food that remains undigested will then be sent to the large intestines.
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