Question
Biology Question on The Female Reproductive System
Perisperm is:
A
degenerate part of synergids
B
peripheral part of endosperm
C
degenerate part of secondary nucleus
D
remnant of nucellus
Answer
remnant of nucellus
Explanation
Solution
Perisperm is the persistent remnant of the nucellus in seeds, not the endosperm. It is found in Piperaceae and Scitaminaceae.
- It gets formed when the nucellus isn't completely used up.
- It is present in a thin layer in the seed enclosing the endosperm and the embryo.
- Perisperm is the nutritive tissue surrounding the embryo in certain seeds and developing from the nucellus of the ovule.
- After double fertilization, the remnants of the nucellus of the ovule is known as perisperm.
Therefore, the correct option is: Perisperm is the persistent nucellus.
