NEET BIOLOGY

STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS

MORPHOLOGY OF FLOWERING PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Placentation in tomato and lemon is
A
parietal
B
free central
C
marginal
D
axile
Explanation: 

Detailed explanation-1: -Hence, the correct answer is ‘Axile’

Detailed explanation-2: -Complete answer: Axile type of placentation is seen in lemon and tomato. In this type of placentation, the ovary is partitioned into two or more chambers by septa. The placenta is formed in the central region where all the septa intersect or meet and therefore an axle column bearing ovules is formed.

Detailed explanation-3: -Lemon shows axile placentation where the ovary is sectioned by radial spokes with placentas in separate locules.

Detailed explanation-4: -Definition. A type of ovule arrangement in which the ovules arise from placental tissue derived from the apices of the septa of a locule. In this type of placentation the apices of the septa are fused or in very close proximity to one another.

Detailed explanation-5: -The placentation is axile when there are septa which divide the ovary into two or more locules. The ovules are attached along the central axis, in the inner angle formed by the septa. Parietal placentation: there is no septum, so that the ovary is unilocular.

There is 1 question to complete.