Table of Contents
- 1 What is the function of meiosis in the life cycle of a fern quizlet?
- 2 Where does meiosis occur in fern life cycle?
- 3 What is meiosis in the plant life cycle?
- 4 How does the Charophyta life cycle differ from the life cycle of land plants?
- 5 What is the life cycle of a fern?
- 6 Why is the life cycle of fern different from most plants?
- 7 How do ferns work?
- 8 How does meiosis and mitosis work in a fern?
- 9 What are the steps in the life cycle of a fern?
What is the function of meiosis in the life cycle of a fern quizlet?
spores. Correct This answer choice is correct because meiosis in ferns directly produces haploid spores, which give rise to the gametophyte.
Where does meiosis occur in fern life cycle?
Meiosis occurs within sporangia, located on the underside of the sporophyte leaf. After the spores are released they germinate, divide by mitosis and grow into simple heartshaped gametophytes. On the gametophyte, cells in the archegonium and antheridium form the eggs and sperm.
What is meiosis in the plant life cycle?
After reaching maturity, the diploid sporophyte produces spores by meiosis, which in turn divide by mitosis to produce the haploid gametophyte. The new gametophyte produces gametes, and the cycle continues. This is the alternation of generations, and is typical of plant reproduction (Figure 1).
Do ferns use meiosis or mitosis?
Unlike some other non-flowering vascular plants, ferns produce one type of spore (homosporous) via meiosis in the sac-like sporangia. Within each sporangium, the diploid spores (spore mother cells or sporocytes) undergo meiosis.
How are meiosis and fertilization related?
Meiosis is where a diploid cell gives rise to haploid cells, and fertilization is where two haploid cells (gametes) fuse to form a diploid zygote. In this type of life cycle, the single-celled zygote is the only diploid cell.
How does the Charophyta life cycle differ from the life cycle of land plants?
Charophytes live in water; haploid life cycle; and share certain traits with the land plants. Lands plants have the alternation-of-generations life cycle; protect a multicellular sporophyte embryo; gametangia produce gametes; apical tissue produces complex tissues; waxy cuticle prevents water loss.
What is the life cycle of a fern?
The life cycle of the fern has two different stages; sporophyte, which releases spores, and gametophyte, which releases gametes. Gametophyte plants are haploid, sporophyte plants diploid. This type of life cycle is called alternation of generations.
Why is the life cycle of fern different from most plants?
The life cycle of ferns is different from other land plants as both the gametophyte and the sporophyte phases are free living. The life cycle of ferns is different from other land plants as both the gametophyte and the sporophyte phases are free living.
What is the purpose of meiosis in plants?
Meiosis is the process of chromosomal reduction in eukaryotic cells (plants, animals, and fungi), which leads to the production of germ cells (gametes/sex cells) needed for sexual reproduction.
How is meiosis useful to plants?
When plants reproduce sexually, they use meiosis to produce haploid cells that have half the genetic information of the parent (one of every chromosome). Eventually, the haploid cells produce eggs and sperm that combine to create a new, genetically unique diploid organism that has two of every chromosome.
How do ferns work?
Ferns do not flower but reproduce sexually from spores. Mature plants produce spores on the underside of the leaves. When these germinate they grow into small heart-shaped plants known as prothalli. Male and female cells are produced on these plants and after fertilisation occurs the adult fern begins to develop.
How does meiosis and mitosis work in a fern?
Mitosis and meiosis in the life cycle of a fern. A haploid spore germinates and begins to divide by mitosis to form the small multicellular gametophyte stage. The gametophyte stage produces gametes (by mitosis) which fuse to form a zygote. The zygote divides by mitosis to form the large multicellular sporophyte stage.
What are the steps in the life cycle of a fern?
Starting with the “fern” as we recognize it (the sporophyte), the life cycle follows these steps: The diploid sporophyte produces haploid spores by meiosis, the same process that produces eggs and sperm in animals and flowering plants. Each spore grows into a photosynthetic prothallus (gametophyte) via mitosis.
Where does meiosis occur in the life cycle?
In the Life Cycle of Plants Meiosis Meiosis usually produces haploid reproductive cells called spores in plants, which frequently divide mitotically into multicellular haploid plant structures. One of the unusual forms of plant reproduction occurs in primitive plants like algae.
What kind of cell division does a fern have?
Meiosis is a type of cell division that produces gametes – cells that contain half the number of chromosomes than the parent cell. In ferns, these cells are the spores. The typical big fern plant, what it does is, by meiosis, produces spores, and the spores have half the number of chromosomes of the big parent plant.