What is the role for the gametophyte?
A gametophyte refers to a plant that produces gametes. A prothallus is a small, bisexual, heart-shaped fern gametophyte measuring approximately 5 mm in length. Since it was derived from meiosis, the prothallus is haploid. The prothallus remains attached to the zygote as it grows into an embryo.
What is the main function of the gametophyte generation?
The gametophyte, also known as the sexual phase of the plant and algae life cycle, is It creates sex organs, which produce gametes. Diploid zygotes have a double set chromosomes and participate in fertilization.
What is a gametophyte generation?
The sexual phase, also known as the gametophyte or sex cell generation, is responsible for the production of gametes or sex cells. While the asexual or sporophyte phase produces spores sexually, the The gametophyte has a single set, while the sporophyte has two.
Which generation is dominant in bryophytes?
How are gametes produced in bryophytes?
Bryophytes do not have flowers or pollen and rely only on water to transport the male gametes (the fertile sperm) to their female counterparts (the eggs). After the eggs have been fertilized by the sperm, the spore capsules can be produced. A spore capsule, also known as sporophyte is a part of the sporophyte. It develops from fertilized eggs.
Which cell represents the beginning of Sporophytic stage of plant life cycle?
Plants go through two stages during their life cycle: the gametophyte and sporophyte stages. The haploid gametophyte is responsible for the production of male and female gametes through mitosis in multicellular structures. The diploid zygote is formed by the fusion of male and female gametes. It then develops into a sporophyte.
What are the stages of a plant?
- The average plant goes through four stages: seed, sprout, seedling, adult plant.
- Seed. A seed is formed through pollination (pollen reach the stigma) or ferilization (the stigma and pollen join).
- Sprout. The sprout is the next stage.
- Adult Plant.
What is the main function of the seed?
Functions. The seeds serve many functions for the plants that make them. These functions include nourishment of the embryo, dispersal from a new place, and dormancy in unfavorable circumstances.
What is the biggest part of seed?
Which part of the seed will grow into a mature plant?
The plumule is the portion of a seed embryo which develops into the shoot that bears the first true leaves. The plumule, which is small and conical in most seeds, such as the sunflower, has no leaf structure.
What is germination process?
Seed germination is initiated when water is absorbed into the embryo. This results in the rehydration of the cells and their expansion. Soon after imbibition or the start of water uptake, the rate at which the embryo is breathing increases and other metabolic processes that were suspended or greatly reduced during dormancy resume.