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Sexual Reproduction In Flowering Plants

Question

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Megasporangium is equivalent to

embryo sac

fruit

nucellus

ovule

Solution

D.

ovule

An ovule or megasporangium generally has a single embryo sac formed from a megaspore through reduction division. It is a small structure attached to the placenta by means of a stalk called funicle.

Ovule $\to$ Megaspore Mother Cell (MMC) by meiosis $\to$ Megaspore

Each has one or two protective envelopes called integuments. Nucellus is a mass of cells enclosed with the integuments. Fruits develop from the ovary of flower, other floral parts degenerate and fall off.

Some More Questions From Sexual Reproduction in flowering Plants Chapter

The fertilization occurs in the :

The female gametophyte of a typical dicot at the time of fertilization is:

Development of embryo from any cell of nucellus is called :

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

In Calotropis, all the microspores of anther lobe remain united to form

Albuminous seeds store reserve food materials in ....................

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