Most nutrient absorption takes place in the
A) small intestine.
B) mouth.
C) stomach.
D) ascending colon.
E) sigmoid colon.

Question

Quizplus · Accepted Answer

The small intestine is the primary site for nutrient absorption. This is due to the presence of specialized structures called villi and microvilli, which increase the surface area of the small intestine and allow for efficient absorption of nutrients into the bloodstream. The large intestine (which includes the ascending and sigmoid colon) primarily absorbs water and electrolytes, but very little nutrients. The mouth and stomach play a role in digestion but not significant absorption of nutrients.

Most Nutrient Absorption Takes Place in the