Question

which of the following most accurately describes the digestive process of absorption in the body?
waste and insoluble fibers are eliminated from the body through the rectum and anus.
saliva in the mouth starts to chemically break down food as it is chewed.
the liver and pancreas excrete digestive enzymes into the small intestine.
nutrients and water molecules move from the digestive tract into the body via the bloodstream.

Explanation:

• The first option describes elimination, not absorption.
• The second option describes the initial chemical digestion in the mouth.
• The third option describes the role of accessory organs in digestion, not absorption.
• The fourth option correctly defines absorption: the movement of digested nutrients and water from the digestive tract into the bloodstream (and body tissues).

Answer:

Nutrients and water molecules move from the digestive tract into the body via the bloodstream.