Question
Question: The point at which funiculus touches the ovule is A) Chalaza B) Hilum C) Raphe D) Endothe...
The point at which funiculus touches the ovule is
A) Chalaza
B) Hilum
C) Raphe
D) Endothelium
Solution
Funicle is the stalk which attaches a seed or ovule to the placenta and ovule is the structure which gives rise to the female reproductive cells.
Complete answer:
Let us analyse the options to find the correct answer,
Option A: The chalaza is the part of the ovule which is present opposite to the portion of attachment of nuclellu, funiculus and integuments. Therefore, this is the incorrect option.
Option B: The point at which funiculus touches the ovule is hilum. The hilum in plants can be compared to umbilical cord in humans. Therefore, this is the correct option.
Option C: Raphe is basically the ridge which shows the fusion of funiculus with the body of the ovule. Therefore, this is the correct option.
Option D: The specialized tissue which is present around the embryo sac is known as endothelium. Therefore, this is the correct option.
Therefore, the correct option is (B) Hilum.
Note: Seeds are a very important part of a plant, as they have the ability to give rise to a whole new plant. There are three parts in a seed,
Seed coat - It is present as the outermost layer of the seed
Embryo - It is developed from a fertilized egg and is diploid in nature
Endosperm - It contains nutrients