Question

It is known as squirting cucumber
(a)Cucurbita
(b)Ecballium
(c)Nicotiana
(d)Calotropis

Answer 1

Hint: It is thus considered to possess rapid plant movement. Generally, this also means that the shooting mechanism can be decreased in water-stressed conditions. The fruit also utilizes hygroscopic movement in order to shoot the seeds out of the fruit.

Complete answer:
Squirting cucumber also called the Ecballium elaterium or exploding cucumber (however, to not be mistaken for Cyclanthera explodens), perhaps a plant inside the category of the cucumber family. It gets its uncommon name from the very certainty that, when ready, it spurts a surge of adhesive fluid containing its seeds, which might be seen with the eye.
It is thus considered to possess rapid plant movement. Cucurbita, Nicotiana, and Calotropis are not known as squirting cucumber.

Additional information
The tissue within the fruit of the squirting cucumber that surrounds the seed is thin-walled. In low volumes of cytoplasm, the pressure to release the seed is made by the increment in the concentration of glucoside and elaterinidin. This makes an osmotic pressure of up to 27 atms. The pressure building strategy additionally appears to depend on the phloem sieve tubes.
This method is completed passively where the fruit changes its structure when it dies and tension is relieved within the dead tissue, causing movement. This movement can be due to coiling, bending, or twisting cells that increase its morphological shape as the cell dries. Because dying cells are mostly made up of cell walls, the shape will be determined by the shape of the cell wall. This is a method of self-dispersal.

So the correct answer is ‘Ecballium’.

Note: Sudden movements in plant tissues are prone to different types of mechanical instabilities. In the case of E. elaterium, thanks to the connection between the duration of movement and therefore the size of the tissue, the plant part fractures.
The effectiveness of the dispersal appears underneath as an investigation found that despite the fact that the E. elaterium might have sprayed its seed to the whole plot, the measurements, and site of the pervaded regions remained generally comparative.