wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is:

A
free central
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
basal
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
axile
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
parietal
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D parietal
Placenta are soft cushion-like tissues to which the ovules are attached. The arrangement of ovules within the ovary is known as placentation.

The placentation is of different types, i.e., marginal, axile, parietal, basal and free central.

Parietal placentation: The ovules develop on the inner wall of the ovary or on the peripheral part. e.g., mustard.

Axile placentation: The ovary is multilocular and the ovules are borne on the central axis as in China rose, tomato, etc.

Free Central placentation: The ovules are present on the central axis of the ovary and septa is absent so the ovary is unilocular, as in Dianthus and Primrose.

Basal placentation: The placenta develops at the base of the ovary and a single ovule is attached to it, as in sunflower.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon