Question

Diffusion needs a semi-permeable membrane for its occurrence.

• A. True
• B. False

Answer 1

The correct option is B False

Diffusion:

• Diffusion is the exchange of matter (solid, liquid, and gases) where matter travels freely and passes through the cell membrane from a region of higher concentration to a region of lower concentration.
• Diffusion plays a vital role in chemical reactions such as photosynthesis and the respiration of plants.
• Transpiration also occurs through diffusion.

Explanation:

• Simple diffusion does not require a semi-permeable membrane and occurs through a freely permeable membrane.
• Osmosis on the other hand requires the presence of a semi-permeable membrane.
• Facilitated diffusion requires a protein channel.

Final answer:

The given statement is false.