Question

Megasporangium is equivalent to:

• A. Megaspore mother cell
• B. Ovule
• C. Egg cell
• D. Megaspore

Answer 1

The correct option is B Ovule

Megasporangium is equivalent to the ovule. Ovule is an integumented megasporangium found in spermatophytes which develops into seed after fertilization. An angiosperm ovule is typically an ovoid and whitish structure. It occurs inside the ovary where it is attached to a parenchymatous cushion called placenta either singly or in a cluster. The ovule is stalked. The stalk is called funiculus or funicle. The point of attachment of the body of the ovule with the funiculus is known as hilum. It is present as a scar on a mature seed.
Megaspore mother cell is a diploid cell present in the megasporangium which undergoes meiosis to give rise to megaspores. Megaspore undergoes mitotic division to give rise to the complete mature embryo sac.
Egg cell is the haploid female gamete which fuses with the male gamete to give rise to zygote.