Which of the following is the correct sequence of processes that takes place when a flowering plant reproduces?
Thus, the correct answer is option (D), 'Gametes, zygote, embryo, seed'.
The correct sequence of reproduction stages seen in flowering plants is gametes, zygote, embryo and seedling.
The sequence of reproductive stages in the plant: gamete formation (ovule and pollen), pollen reaches the stigma of flower (pollination), pollen germinates and forms pollen tube that reaches to the ovary and then male gamete is released. Male gamete fuses with female gamete and forms zygote.
There are the 5 stages of plant life cycle. The seed, germination, growth, reproduction, pollination, and seed spreading stages.
Thus, the correct answer is option (D), 'Gametes, zygote, embryo, seed'.
So, the correct answer is 'Archesporium →→ megaspore mother cell →→ megaspore →→ embryo sac'.
Background: The plant life cycle consists of four stages; seed, sprout, small plant, and adult plant. When the seed gets planted into the soil with water and sun, then it will start to grow into a small sprout.
The stages of fertilization can be divided into four processes: 1) sperm preparation, 2) sperm-egg recognition and binding, 3) sperm-egg fusion and 4) fusion of sperm and egg pronuclei and activation of the zygote.
There are several methods of asexual reproduction such as fragmentation, budding, spore formation and vegetative propagation. Sexual reproduction involves the fusion of male and female gametes. In vegetative propagation new plants are produced from different vegetative parts such as leaves, stems and roots.
There are commonly four distinct whorls of flower parts: (1) an outer calyx consisting of sepals; within it lies (2) the corolla, consisting of petals; (3) the androecium, or group of stamens; and in the centre is (4) the gynoecium, consisting of the pistils.
What are the 5 steps of germination?
The process of seed germination includes the following five changes or steps: imbibition, respiration, effect of light on seed germination, mobilization of reserves during seed germination, and role of growth regulators and development of the embryo axis into a seedling.
(d) Juvenility → Flowering → Fruiting → Germination.
Answer: Sporophyte, Mitosis, Gametophyte, Meiosis, Spore. The plant exhibit alternation of generations in their life cycle. The plant is the diploid sporophytic phase that produces the haploid spores through meiosis which develop to form the gametophyte.
What is the correct sequence for fertilization in angiosperms? A pollen grain lands on the stigma. The tube cell inside the pollen grain elongates to form a pollen tube. The two sperm cells travel through the pollen tube to reach the ovule and the female gametophyte called the embryo sac.
The embryo after growing and fully developing forms the seeds. So, the correct sequence is pollination, fertilization, embryo, seedling. The correct answer is (c) pollination, fertilization, embryo, seedling.
