Question

multiple choice question
normally, fluid moves into a capillary at the venule end through which mechanism?

active transport
filtration
osmosis

Explanation:

To determine the mechanism of fluid movement into a capillary at the venule end, we analyze each option:

• Active transport: Requires energy and is for specific molecule transport, not bulk fluid movement here.
• Filtration: Occurs at the arteriole end due to hydrostatic pressure.
• Osmosis: At the venule end, osmotic pressure (from plasma proteins) draws fluid into the capillary as hydrostatic pressure drops, making osmosis the correct mechanism.

Answer:

Osmosis