Why does rate of transport reach maximum in facilitated diffusion ?

What is facilitated diffusion ?

What is correet about the movement of substance across the membrane in facilitated diffusion?

Transport in plants || osmosis || types OF osmosis || endosmosis and exosmosis || types OF solution || isotonic hypotonic and hypertonic || osmotic pressure || significance OF osmosis || active transport comparison OF simple diffusion, facilitated diffusion and active transport

Select an incorrect statement for facilitated diffusion

Assertion: Glucose is absorbed by either simple diffusion or active transport. Reason: Amino acids are absorbed by either simple diffusion, facilitated diffusion or active transport.

Which of these properties are seen in both facilitated diffusion as well as active transport ? I. Requires ATP for energy . II. Highly selective process . III. Occurs against the concentration gradient. IV. There occurs transport saturation .

Select the incorrect statement w.r.t. facilitated diffusion