Question

Label the figure below to describe the life cycle of a flowering plant. Sporophyte produces spores through meiosis Megaspores become embryo sacs Mature ovary becomes a fruit MEIOSIS FERTILIZATION diploid (2n) haploid (n) Double fertilization produces zygote and 3n endosperm nucleus Microspore becomes pollen grains Ovule becomes seed and endosperm is taken up by cotyledons

Answer 1

Answer

The life cycle of flowering plants:

The life cycle of flowering plants is consist of some stages. In the diagram below such stages are represented.

below to describe the life cycle of a flowering plant. Ovule becomes seed and endospermis taken up by cotyledons Mature ovary becomes a fruit MEIOSIS FERTILIZATION diploid (2n) haploid (n) Sporophyte produces spores through meiosis Microspore becomes pollen grains Double fertilization produces zygote and 3n endosperm nucleus Megaspores becomes embryo sacs

Explanation:

The flower contains two Reproductive parts

1. Androecium and
2. Gynoecium.

The androecium is the male part of the flowering plant which produces microspore after meiosis. The microspore becomes pollen grains. The pollen grains contain 2 male nuclei.

The gynoecium is the female part of the flowering plant which producers megaspore after meiosis. The megaspore contains egg along with 6 other nuclei and the megaspore becomes embryo sacs.

After pollination and production of the pollen tubes, the angiosperms plants go for double fertilization. In this process one male nucleus ( n) fuse with egg (n) and produce a zygote (2n) and the other male nuclei fertilize two polar nuclei and produce endosperm (3n).

After fertilization, the mature ovary becomes a fruit and the ovules become seeds that contain an embryo. And the endosperm is taken up by two cotyledons.