Table of Contents
- 1 What describes a sporophyte of a fern?
- 2 What is the sporophyte structure of a fern?
- 3 How do the sporophyte stage and gametophyte stage make a cycle?
- 4 Where is the sporophyte in ferns?
- 5 Would you describe the gametophyte or sporophyte as the dominant stage in the fern life cycle?
- 6 How do sporophyte and gametophyte stages differ?
- 7 Which is the gametophyte phase of the fern life cycle?
- 8 When do spores develop in the sporophyte stage?
What describes a sporophyte of a fern?
Reproduction by Spores Plants we see as ferns or horsetails are the sporophyte generation. The sporophyte generally releases spores in the summer. This mature fragile fern gametophyte is about ½ inch across and is growing on soil that is almost continually damp. Parts of a gametophyte. You can grow ferns from spores.
What is the sporophyte structure of a fern?
The typical fern, a sporophyte, consists of stem, leaf, and root; it produces spores; and its cells each have two sets of chromosomes, one set from the egg and one from the sperm.
What are the characteristics of a sporophyte?
A sporophyte is a multicellular diploid generation found in plants and algae that undergo alternation of generations. It produces haploid spores that develop into a gametophyte. The gametophyte then makes gametes that fuse and grow into a sporophyte. In many plants, the sporophyte generation is the dominant generation.
Which stages in the life cycle of a fern constitute the sporophyte generation?
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.
How do the sporophyte stage and gametophyte stage make a cycle?
Fusion of the male and females gametes forms the diploid zygote, which develops into the sporophyte. 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.
Where is the sporophyte in ferns?
In ferns, the multicellular sporophyte is what is commonly recognized as a fern plant. On the underside of the fronds are sporangia. Within the sporangia are spore producing cells called sporogenous cells.
What is sporophyte in botany?
: the diploid multicellular individual or generation of a plant with alternation of generations that begins from a diploid zygote and produces haploid spores by meiotic division — compare gametophyte.
What is the function of a sporophyte?
The basic function of the sporophyte is to create spores – that much is known already. The spores, in turn, produce the gametophytes that give rise to the male and female gametes through the process of meiosis. Meiosis is the type of cell division that reduces the number of chromosomes in half.
Would you describe the gametophyte or sporophyte as the dominant stage in the fern life cycle?
The dominant part of the life cycle, i.e., the plant that is recognized as a fern, represents the sporophyte generation. The gametophyte generation includes the phase of the life cycle between the formation of spores by meiosis and fertilization and formation of the zygote.
How do sporophyte and gametophyte stages differ?
The plant’s haploid phase is called gametophyte and the diploid phase is called the sporophyte….
| Difference Between Gametophyte and Sporophyte | |
|---|---|
| Sporophytes | Gametophytes |
| Sporophytes have two sets of chromosomes | Gametophytes have a single set of chromosomes |
| Sporophytes reproduce asexually | Gametophytes produce sexaully |
How do a fern sporophyte and a moss sporophyte differ?
The sporophyte of ferns is differentiated into true leaves, stem, and roots. In contrast, mosses lack true leaves, stem or roots. Ferns are vascular plants, but mosses are not.
How are spores produced in a fern sporophyte?
Fern Sporophyte. Sporophytes can reproduce either by vegetative cloning via their rhizomes or through spore formation via meiosis. Spores, rather than gametes, are the unicellular, haploid products of meiosis in fern plants. Spores in turn undergo mitotic cell divisions to produce the multicellular, haploid gametophyte.
Which is the gametophyte phase of the fern life cycle?
The prothallium is the gametophyte phase in the fern’s life cycle. The heart-shaped prothallia produce gametes that unite to form a zygote, which develops into a new sporophyte plant. Lester V. Bergman/Corbis Documentary/Getty Images In plants with vascular tissue systems, the sporophyte phase is the primary phase of the life cycle.
When do spores develop in the sporophyte stage?
To clearly understand the plant’s life cycle, sporophyte is the phase when plants produce diploid (2n) spores, which in turn [spores] develop into gametophytes. During the gametophyte stage, haploid (n) gametes or reproductive cells such as sperm and eggs are developed.
How are gametes and sporophytes related in the plant life cycle?
1 The plant life cycle alternates between a gametophyte phase and a sporophyte phase in a cycle known as alternation of generations. 2 The gametophyte represents the sexual phase of the life cycle as gametes are produced in this phase. 3 Plant sporophytes represent the asexual phase of the cycle and produce spores.