Choose the answer that best completes the following analogy: Diffusion is to as endocytosis is to
A.
filtration; phagocytosis
B.
osmosis; pinocytosis
C.
solutes; fluid
D.
gradient; chemical energy
The best answer to complete the analogy is:
B. osmosis; pinocytosis
Here’s the reasoning:
- Diffusion and osmosis are both processes of passive transport where substances move across membranes.
- Endocytosis and pinocytosis are both processes of active transport where the cell membrane engulfs substances to bring them into the cell.
So, the analogy is: Diffusion is to osmosis as endocytosis is to pinocytosis.