NEET Biology question

Not in NEET syllabus

At the time of seed germination, when water is absorbed by the seed due to imbibition, the seed coat breaks as it swells to a lesser degree than the kernel because

(A)The kernel is made up of cellulose while the seed coat is made up of proteins, lipids and starch
(B)The kernel is made up of proteins, lipids and starch, while the seed coat is made up of celluloseCorrect
(C)Both kernel and seed coat are made up of the same constituents; it depends on the nature of the medium
(D)None of the above

Answer: (B)

Solution

The seed coat is composed largely of cellulose, which has a comparatively low imbibitional capacity, so it absorbs and swells only a little. The kernel (embryo and endosperm) contains proteins, lipids and

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Question ID VK-127827