Advertisements
Advertisements
Question
Opening and closing of stomata is due to ______.
Options
High pressure of gases inside the cells.
Movement of water in and out of the guard cells.
Stimulus of light in the guard cells.
Diffusion of CO2 in and out of the guard cells.
Solution
Opening and closing of stomata is due to Movement of water in and out of the guard cells.
Explanation:
They swell up when water enters guard cells due to water movement. The pore at the stomata is now open. The stomata close when they dry out and become flaccid.
APPEARS IN
RELATED QUESTIONS
What are the necessary conditions for autotrophic nutrition?
In photosynthesis, solar energy is absorbed by the pigment called ______.
Which part of the plant takes in carbon dioxide from the air for photosynthesis?
Name the process by which plants make food.
Fill in the following blanks with suitable words :
Green plants use .................... and .................... to make food.
The process in plants which converts light energy into chemical energy.
Most of the plants absorb nitrogen in one of the following forms. This is:
(a) proteins
(b) nitrates and nitrites
(c) urea
(d) atmospheric nitrogen
Why is plant food not produced in any other parts of the plant except the green ones?
Opening and closing of stomatal pore depends on ______.
In the given diagram of a closed stomata: (1), (2), (3) and (4) respectively are:
