What are the general characteristics of algae?
Characteristics of Algae
- Algae are photosynthetic organisms.
- Algae can be either unicellular or multicellular organisms.
- Algae lack a well-defined body, so, structures like roots, stems or leaves are absent.
- Algaes are found where there is adequate moisture.
- Reproduction in algae occurs in both asexual and sexual forms.
Is a thallus diploid?
The life cycle of organisms with “alternation of generations” is characterized by each phase consisting of one of two separate, free-living organisms: a gametophyte ( thallus (tissue) or plant), which is genetically haploid, and a sporophyte (thallus or plant), which is genetically diploid.
What is the difference between algae and bryophytes?
More Difference Between. Algae – Definition, Characteristics, Types and Examples. Bryophyta – Characteristics, Life cycle and Examples of Bryophytes….
| Difference Between Bryophytes and Algae | |
|---|---|
| Algae | Bryophytes |
| Stomata and pores are absent | Stomata and pores are present |
Do liverworts have conducting tissue?
Liverworts and mosses are characterized by their lack of vascular conducting tissue.
What are the characteristics of algae and fungi?
Algae are autotrophs, and Fungi are heterotrophs. Algae contain photosynthetic pigments. Fungi are capable of digesting non-living, organic material, and also absorbs simple nutrients by the fungal hyphae. Due to the presence of different photosynthetic pigments, algae have different colors like green, red, and brown.
What is the function of a sporangium?
A sporangium is a structure in certain plants and other organisms that is charged with making and storing spores. Spores are haploid structures created in organisms that help to germinate and form new organisms. In other words, they help organisms to reproduce.
Are Gemma cups diploid?
The gemma cups are cup-like structures containing gemmae. The gemmae are small discs of haploid tissue, and they directly give rise to new gametophytes. They are dispersed from gemma cups by rainfall. The gemmae are bilaterally symmetrical and are not differentiated into dorsal and ventral surfaces.
What are the three characteristics of bryophytes?
General Characteristics of Bryophytes:
- Plants occur in damp and shaded areas.
- The plant body is thallus like, i.e. prostrate or erect.
- It is attached to the substratum by rhizoids, which are unicellular or multicellular.
- They lack true vegetative structure and have a root-like, stem-like and leaf-like structure.
What is the difference between bryophytes and bryophyta?
Bryophyta vs. bryophytes: Bryophyta refers to the moss division, and bryophytes refers to the broader group which includes the division Bryophyta, liverworts, and hornworts.
Do liverworts have stomata?
Stomata in bryophytes are located on sporangia and are restricted in their occurrence across phylogeny. Liverworts are the only extant land plants that lack stomata entirely, while stomata are widespread but not ubiquitous in hornworts and mosses.
Do all plants have sporangia?
Virtually all plants, fungi, and many other lineages form sporangia at some point in their life cycle. Sporangia can produce spores by mitosis, but in nearly all land plants and many fungi, sporangia are the site of meiosis and produce genetically distinct haploid spores.