Question

Osmosis involves the movement of water molecules across a cell membrane. Diffusion involves the movement of substances other than water across a cell membrane. In both of these processes, substances move from an area of high concentration to an area of low concentration. Thus, both diffusion and osmosis are forms of _______.

A.
cellular respiration
B.
structural repair
C.
passive transport

Answer 1

Both osmosis and diffusion are forms of passive transport, involving the movement of molecules from an area of higher to lower concentration without energy expenditure.

Step-by-step explanation:

Osmosis and diffusion are both processes that move substances across a cell membrane from an area of high concentration to an area of low concentration. Therefore, they are forms of passive transport. In osmosis, water molecules pass through a semipermeable membrane via aquaporins to equilibrate solute concentrations on both sides of the membrane. During diffusion, substances other than water, such as oxygen and carbon dioxide molecules, spread out evenly without requiring energy. Both of these processes are essential for maintaining cellular function and homeostasis.

Answer 2

Your answer is C. Passive transport