Question

the movement of water across a selectively permeable membrane is called

a. facilitated diffusion
b. active transport
c. osmosis
d. filtration
e. homeostasis

Explanation:

Identify the definition of water movement

The question asks for the term that describes the movement of water across a selectively permeable membrane.

Evaluate the given options

• Facilitated diffusion is the passive movement of molecules across a membrane via transport proteins.
• Active transport is the movement of substances against their concentration gradient, requiring energy (ATP).
• Osmosis is specifically defined as the diffusion of water molecules across a selectively permeable membrane from a region of higher water concentration to a region of lower water concentration.
• Filtration is the movement of water and solutes across a membrane due to hydrostatic pressure.
• Homeostasis is the maintenance of a stable internal environment.

Select the correct term

The specific movement of water across a selectively permeable membrane is called osmosis.

Answer:

• (A) facilitated diffusion
• (B) active transport
• (C) osmosis (Correct answer)
• (D) filtration
• (E) homeostasis