An animal is being studied to understand its principal mechanism for obtaining water-soluble nutrients. The animal is found to have a relatively small intestine that has well-developed channels in the junctions between cells and a relatively small number of active transport pumps. What is this animal's major route of absorption of water-soluble nutrients?

Question

Quizplus · Accepted Answer

The presence of well-developed channels in the junctions between cells and a relatively small number of active transport pumps suggests that the animal primarily uses paracellular absorption, which involves the movement of substances between cells through these channels.

An Animal Is Being Studied to Understand Its Principal Mechanism