Question

Match the images with their relevant terms.

• A. A- orthotropous, B- anatropous, C- hemi-anatropous, D-amphitropous, E- Circinotropous, F- Campylotropous.
• B. A- orthotropous, B- anatropous, C-amphitropous,, D-hemi-anatropous, E- Campylotropous, F- Circinotropous.
• C. A- orthotropous, B- Circinotropous, C- amphitropous, D-Campylotropous, E- hemi-anatropous, F- anatropous.
• D. A- orthotropous, B- anatropous, C- campylotropous, D-hemi -anatropous, E- amphitropous, F-Circinotropous.

Answer 1

The correct option is C A- orthotropous, B- Circinotropous, C- amphitropous, D-Campylotropous, E- hemi-anatropous, F- anatropous.

Orthotropous - Simplest and primitive type of the ovule where hilum, chalaza, micropyle lie in a straight line making it look erect.

Anatropous - Orthotropous ovule rotated by 180 degrees, the micropyle lies very close to the hilum.

Campylotropous - Curved ovule, where chalaza and micropyle do not lie in the same straight line

Hemi-anatropous - The body of the ovule is curved to 90 degrees compared to orthotropous; the micropyle and chalaza lie in one straight line

Amphitropous - curvature of the ovule is very much pronounced and the embryo sac also becomes curved and looks horse-shoe shaped.

Circinotropous - funicle, in this case, is especially long, curved ovule with the micropyle almost touching the funicle.