Question

absorption of nutrients such as proteins,carbohydrates and fats into the bloodstream begin in the

Answer 1

Answer:

The small intestine is the major site for digestion and absorption of nutrients. The small intestine is up to 6 meters long and is 2-3 centimeters wide. The upper part, the duodenum, is the most active in digestion. Secretions from the liver and pancreas are used for digestion in the duodenum.

Answer 2

Answer:

small intestine

Explanation:

the small intestine has one cell thick walls and villi to increase surface area of absorption of nutrients into the blood, glucose( the end product of amylase and carbohydrates) , amino acids( end product of protylase and proteins) and fats(or lipids) get absorbed into the blood stream only here and no where else