OBJECTIVE FORESTRY

FORESTRY

PLANT AND WOOD ANATOMY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What causes stomata to open?
A
Plenty of water
B
too little water
C
cold temperature
D
hot temperature
Explanation: 

Detailed explanation-1: -Several environmental factors affect stomata opening, including hormone, light quality and intensity, air humidity, atmospheric CO2 concentration, biotic and abiotic stresses.

Detailed explanation-2: -Guard cells regulate the opening and closing of stomatal holes, which are controlled by the process called osmosis. The entry of water into the stomata makes guard cells swell which leads to the opening of the stomata. The stomata close when the guard cells lose water and constrict, becoming flaccid and straight.

There is 1 question to complete.