Question

lo 5.3 - 5.4. what is the process by which nutrients are absorbed into the bloodstream?
through the walls of the small intestine
through the walls of the large intestine
by diffusion across the skin
by absorption through the lungs
through the walls of the stomach

Explanation:

The small intestine is the primary site for nutrient absorption. It has a large surface area due to villi and microvilli, which facilitate the transfer of nutrients into the bloodstream. The large intestine mainly absorbs water and some electrolytes. The skin is not a major site for nutrient absorption (except for certain substances like some medications in transdermal patches). The lungs are for gas exchange (oxygen and carbon dioxide). The stomach has some limited absorption (like alcohol and certain drugs) but is not the main site for most nutrients.

Answer:

Through the walls of the small intestine