26. Pollen grains of some of the plants germinate on stigma soon but they burst in water or dilute sugar solution
(a) Exosmosis (b) Endosmosis
(c) Imbibition (d) Plasmolysis
Ans. (b) Because the concentration of cytoplasm of pollen grains is high in comparison to dilute sugar solution or water.
(13)
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