Q. Which one is responsible for opening of stomata ? (Guj. CET 2006) (Solved)
1. Decrease in CO2 concentration and increse in H+ ion concentration.
2. Decrease in CO2 cone and decrease in H+ ion concentration.
3. Increase in CO2 cone and increase in H+ ion cone.
4. More free H+ ions and less Cl- ions.
- c. Increase in CO2 cone and increase in H+ ion cone.