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Which transport process allows glucose to enter a plant cell through the cell membrane?

easy MCQ 1 mark Class 9 · Science · The Fundamental Unit of Life
  1. Passive diffusion
  2. Facilitated diffusion
  3. Active transport
  4. Osmosis
Answer
Facilitated diffusion

The correct answer is Facilitated diffusion — Thus the correct transport process is facilitated diffusion.

Step-by-step solution

  1. The cell membrane is a phospholipid bilayer with embedded protein channels.
  2. Glucose is a polar molecule and cannot diffuse freely through the bilayer.
  3. A transport protein called a carrier facilitates glucose movement down its concentration gradient.
  4. This process does not require ATP and is known as facilitated diffusion.
  5. Thus the correct transport process is facilitated diffusion.
Common mistake: Confusing passive diffusion with facilitated diffusion

Concept tested: Selective permeability of cell membrane

Published · How this solution was prepared and checked

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