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

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Solution

When seeds are soaked in water, they absorb water as a result of imbibition. They take up water and swell due to accumulation of water. Due to swelling the size of the seed increases and seed coat bursts as a result of pressure applied by swelling.

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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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