Question

Explain in detail the process of digestion and absorption that occurs in the small intestine. Provide a detailed description of how different types of nutrients are taken up by intestinal epithelial cells that line the gut. How does the brush border behave for different types of nutrients and how are they transported to the liver and the bloodstream following absorption?

Answer 1

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.