Advertisements
Advertisements
प्रश्न
What are stomata?
Advertisements
उत्तर
The microscopic structures found in the leaves of plants that allow the diffusion (exchange) of gases are called stomata or pores. This stomatal system is an open space or pore surrounded by two epidermal guard cells and many subsidiary cells. The cells (guard cells) control the process of closing or opening stomata.
APPEARS IN
संबंधित प्रश्न
Discuss the factors responsible for ascent of xylem sap in plants
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in the correct form by changing either the first or the last word only.
Most transpiration occurs at midnight.
The diagram given alongside is an apparatus used to study a particular phenomenon in plants.
(i) Name the apparatus.
(ii) What is it used for?
(iii) What is the role played by the air bubble in this experiment?
(iv) Of what use is the reservoir?
Boojho’s uncle was hospitalised and put on dialysis after a severe infection in both of his kidneys.
When does it become necessary to take such a treatment?
The lower surface of leaf will have more number of stomata in a ______.
Describe briefly the three physical properties of water which helps in ascent of water in xylem.
Observe the following diagram and identify the process and its significance from the following options:
Define the term Vital capacity.
Which of the following is an external factor affecting the rate of transpiration?
