NEETBotanySexual Reproduction in Flowering Plants
Parts of ovule Location/Features A. Hilum 1. Mass of cell surrounding the embryo sac B. Nucellus 2. Basal part C. Chalaza 3. Two envelopes surrounding the ovule D. Integuments 4. Region of ovule where funicle is attached
Options
- AA -4 , B -1 , C - 2, D - 3
- BA -4 , B -2 , C - 1, D - 3
- CA - 3, B -2 , C - 1, D -4
- DA -1 , B -4 , C - 3, D - 2
Correct answer
A. A -4 , B -1 , C - 2, D - 3
Step-by-step solution
The ovule is a small structure attached to the placenta by means of a stalk called funicle. The body of the ovule fuses with funicle in the region called hilum. Thus, hilum represents the junction between ovule and funicle. Each ovule has one or two protective envelopes called integuments. Integuments encircle the nucellus except at the tip where a small opening called the micropyle is organised. Opposite the micropylar end, is the chalaza, representing the basal part of the ovule. Enclosed within the integuments i