What is the direction of micropyle in anatropous ovule :-
A
Upward
B
Downward
C
Right
D
Left
The answer is B.
Solution
In an anatropous ovule (the most common type), the body of the ovule is completely inverted (turned through $180^\circ$) on its stalk, the funicle. As a result the micropyle lies close to the funicle and the hilum and points downward, towards the placenta, while the chalaza is at the top. [add image: anatropous ovule with funicle, hilum and micropyle facing downward and chalaza at the top] So the micropyle of an anatropous ovule faces downward.
ConceptInverted anatropous ovule
Structure and Types of Ovules in past papers
2 questions from this chapter have appeared across 2 exam years.