Question
Biology Question on Anatomy of Flowering Plants
An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is
A
Campylotropous
B
Anatropous
C
Orthotropous
D
Hemitropous
Answer
Hemitropous
Explanation
Solution
A hemitropous ovule is an ovule that becomes curved, positioning the nucellus and embryo sac at a right angle to the funicle. In this type of ovule, the body of the ovule is oriented transversely, with the micropyle and chalaza aligned in a straight line. An anatropous ovule is one that is completely inverted, turned 180 degrees on its stalk. An orthotropous ovule is a completely straight ovule with the micropyle located at the apex.A campylotropous ovule is an ovule in which the body is curved and bent so that the micropyle and chalaza are not in a straight line.