Multiple choice

Which of the following statements does not characterise seed coat in angiosperms?

  1. The seed coat surrounds the ovule.

  2. The seed coat in the mature angiospermic seed is a paper-thin layer.

  3. The seed coat helps protect the embryo from drying out.

  4. The outer integument has a number of layers.

  5. The maturing ovule undergoes remarkable changes in the integuments.
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B Correct answer
Explanation

This is an incorrect statement as the seed coat in the mature seed can be a paper-thin layer (e.g. peanut) or something more substantial (e.g. thick and hard in honey locust and coconut), or fleshy as in the sarcotesta of pomegranate.

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