Explain how soaked seeds swell up and burst their seed coats.

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Solution

When soaked in water, the seeds swell up due to imbibition and endosmosis. During these two processes water enters the cell. Due to endosmosis, at some point, the seed coat is unable to bear the turgor pressure and hence, the seed coat bursts.

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why seeds soaked in water swell up after some time?

Process by which seeds that are placed in water, soak in water and swell up.

Mention whether the following statements are true (T) or false (F) and give explanation in support of your answer.

(a) Plasmolysis is reverse of deplasmolysis. (T/F)

(b) Guttation is another name for bleeding in plants. (T/F)

(d) If the phloem of a twig is removed keeping the xylem intact, the leaves of a twig wilt. (T/F)

(e) Guttation in plants occurs maximum at mid-day. (T/F)

(f) Dry seeds when submerged in water swell up due to endosmosis. (T/F)

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