Table of Contents
- 1 What is meant by isomorphic alternation of generation?
- 2 What type of life cycle does Ulva have?
- 3 What is isomorphic in plants?
- 4 How would you distinguish isomorphic versus Heteromorphic alternation of generations?
- 5 Do fungi have alternation of generations?
- 6 How would you distinguish Ulva from other seaweed?
- 7 What is isomorphic and heteromorphic alternation of generation?
- 8 What is isomorphic alternation of generations discuss it in relation to Ectocarpus?
What is meant by isomorphic alternation of generation?
In an isomorphic alternation of generations (found in some algae, for example) the sporophyte and gametophyte are morphologically similar or identical; in a heteromorphic alternation of generations they are dissimilar (e.g. in mosses the gametophyte is the dominant and conspicuous generation, whereas in higher plants …
What type of life cycle does Ulva have?
Like many marine algae, Ulva has a biphasic life cycle consisting of an alternation between two free-living forms, a haploid phase (1N, gametophyte) and a diploid phase (2N, sporophyte; Fig 1).
How does Ulva reproduce?
Reproduction in Ulva: Ulva reproduces vegetatively, asexually as well as sexually. Asexual reproduction takes place with the help of quadriflagellate zoospores, produced within the vegetative cells of the thallus. At first the cells which are near the margin of the thallus produce zoospores, and then the remoter ones.
What is isomorphic in plants?
oxford. views 1,428,169 updated. isomorphic Applied to an alternation of generations in which the sporophyte and gametophyte generations are morphologically similar. A Dictionary of Plant Sciences.
How would you distinguish isomorphic versus Heteromorphic alternation of generations?
Species with heteromorphic life cycle have a large multicellular body in one generation but have a microscopic body in the other generation of a year. In contrast, isomorphic species have both diploid and haploid life forms with very similar morphology, having more than two generations in a year.
What is isomorphic alternation of generation explain it by the life cycle of Ectocarpus?
This typical life cycle of Ectocarpus exhibits morpholigically identical filaments representing sporophyte and gametophyte—isomorphic alternation of generations. While the one formed by the direct germination of the zygote bearing unilocular sporangia and plurilocular sporangia is the sporophyte having diploid cells.
Do fungi have alternation of generations?
Alternation of generations is a reproductive cycle of certain vascular plants, fungi, and protists. This cycle, from gametophyte to gametophyte, is the way in which plants and many algae undergo sexual reproduction.
How would you distinguish Ulva from other seaweed?
Features: A thin blade which is only two cells thick! This allows sea lettuce to grow rapidly in nutrient-rich water as it has a high surface to volume ratio. Compared to most other seaweeds, sea lettuce species can better tolerate being exposed during low tide. So it grows near the shore.
Is Ulva a chlorophyta or bryophyte?
Ulva lactuca, also known by the common name sea lettuce, is an edible green alga in the family Ulvaceae….
| Ulva lactuca | |
|---|---|
| (unranked): | Viridiplantae |
| Phylum: | Chlorophyta |
| Class: | Ulvophyceae |
| Order: | Ulvales |