1. Tardigrade
  2. Question
  3. Biology
  4. Which of the following statements are true? A. Endothecium lies behind epidermis. B. Exine of pollen grain is pecto-cellulosic in nature. C. Antipodals are haploid. D. The point at which funicle touches the ovule is called raphe.

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Q. Which of the following statements are true?
A. Endothecium lies behind epidermis.
B. Exine of pollen grain is pecto-cellulosic in nature.
C. Antipodals are haploid.
D. The point at which funicle touches the ovule is called
raphe.

Sexual Reproduction in Flowering Plants

Solution:

The wall of pollen grain has two layers, outer exine and inner intine. Intine is pecto-cellulosic in nature. Exine is made of a highly resistant fatty substance called sporopollenin. The point at which funicle touches the ovule is known as hilum. A raphe is formed by the fusion of funiculus with the body of ovule.