The main function of stomata is

Options

  • A. Gas exchange and regulation of transpiration
  • B. Transport of blood
  • C. Digestion of food
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. Gas exchange and regulation of transpiration

Detailed Explanation

Stomata regulate gas exchange and transpiration. Carbon dioxide enters leaves for photosynthesis, while oxygen and water vapour can leave through stomatal pores. Their opening is influenced by factors such as light, carbon dioxide concentration, water availability and hormones such as abscisic acid (ABA). Thus stomata help balance photosynthesis with water conservation.