Question

The opening and closing of the stomatal pore depends upon

Options

• oxygen

• temperature

• water in guard cells

• concentration of CO₂ in stomata 

Answer 1

water in guard cells

Explanation -

The injection of water into guard cells facilitates guard cell opening. As a result, the guard cell becomes turgid. Water seeping from guard cells assists in guard cell closure. As a result, the guard cells will become flaccid.