Which cells surround the stomatal pore?

Options

  • A. Guard cells
  • B. Red blood cells
  • C. Nerve cells
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. Guard cells

Detailed Explanation

Guard cells surround each stomatal pore and control its opening and closing. Their specialized shape and unevenly thickened walls allow changes in turgor to alter the pore size. Stomata are mainly involved in CO2 uptake, oxygen release and transpiration. Guard cells therefore play a central role in plant gas exchange.