Question

When the ovule is curved and embryo sac becomes horse shoe shaped, such an ovule is called:

• A. Amphitropous
• B. Circinotropous
• C. Campylotropous
• D. Orthotropous

Answer 1

The correct option is A Amphitropous

When the ovule is curved and embryo sac becomes horse-shoe shaped, such an ovule is called as amphitropous. In this, the body of ovule is placed transversely at right angles to the funicle. Its micropyle and chalaza lie in a straight line.

Orthotropous: The micropyle, chalaza and funicle are in straight line. This is most primitive type of ovule.

Circinotropous ovule is a type of ovule where the funicle is long creating nearly a full circle around the ovulewith micropyle pointing to upward direction. Here female reproductive cells are created and kept which eventually after fertilization develops into a seed.

Circinotropous ovule is a type of ovule where the funicle is long creating nearly a full circle around the ovulewith micropyle pointing to upward direction. Here female reproductive cells are created and kept which eventually after fertilization develops into a seed.