Algae and Phycology
Why is red algae group sepatately from brown and green algae?
- grows 1 to 3 ft tall.
- live in warm salt water.
- contain HIGH amounts of calcium
-3-350 ft tall
- "carageenan"--- labeled in ice cream & soda pop.
- less than 1 ft tall
- grow in fresh water
- some can move
Asked in Algae and Phycology
What characteristics distinguish algae from protists?
What is the class of green algae?
Green algae is a very large group of algae and does not have one specific class that it belongs to. Green algae is divided into two main divisions, chlorophyta and charophyta. Within these divisions, there are many classes of green algae, including chlorophyceae, prasinophyceae, trebouxiophyceae, ulvophyceae, and many more.
Asked in Botany or Plant Biology, Protists
What are the largest and most complex kind of algae?
Asked in Botany or Plant Biology
What group of algae are higher plants most closely related?
Does green algae have a nucleus?
Yes, I believe they are single-cell organisms. green algae are a simple form of plant life and are multi celled an the cells do have a nucleus. (The following is lifted from Wikipedia.) The "green algae" is the most diverse group of algae, with more than 7000 species growing in a variety of habitats. The "green algae" is a paraphyletic group because it excludes the Plantae. Like the plants, the green algae contain two forms of chlorophyll, which they use to capture light energy to fuel the manufacture of sugars, but unlike plants they are primarily aquatic. Because they are aquatic and manufacture their own food, these organisms are called "algae,
Asked in Math and Arithmetic
What are 7 different kinds of algae?
Diatoms - Unicellular orgasnisms of the protista kingdom. Chlorophyta - A division of the kingdom of protista (known as green algae). Euglenophyta - Small phylum of the protista kingdom (mostly unicellular). Dinoflagellata - A large group of protists, many of these organisms contain chlorophyll. Chrysophyta - Eukaryotic algae (known as golden algae). Phaeophyta - Belonging to the protista kingdom (known as brown algae). Rhodophyta - Belonging to the protista kingdom (known as red algae).
Asked in Photosynthesis, Chloroplasts
In what group belongs bacteria that contains chlorophyll?
Asked in Seaweed
Are seaweeds plants?
Yes, Seaweed is a loose colloquial term encompassing macroscopic, multicellular, benthic marine algae. The term includes some members of the red, brown andgreen algae. Seaweeds can also be classified by use (as food, medicine, fertilizer, industrial, etc.). A seaweed may belong to one of several groups of multicellular algae: the red algae, green algae, and brown algae. As these three groups are not thought to have a common multicellular ancestor, the seaweeds are a polyphyletic group. In addition, some tuft-forming bluegreen algae (Cyanobacteria) are sometimes considered as seaweeds - "seaweed" is a colloquial term and lacks a formal definition.
Asked in Algae and Phycology
What is a brown algae?
(From Wikipedia, the free encyclopedia) The Phaeophyceae or brown algae, (singular: alga) is a large group of mostly marine multicellular algae, including many seaweeds of colder Northern Hemisphere waters. They play an important role in marine environments both as food, and for the habitats they form. For instance Macrocystis, a member of the Laminariales or kelps, may reach 60 m in length, and forms prominent underwater forests. Another example is Sargassum, which creates unique habitats in the tropical waters of the Sargasso Sea. Many brown algae such as members of the order Fucales are commonly found along rocky seashores. Some members of the class are used as food for humans. Worldwide there are about 1500-2000 species of brown algae. Some species are of sufficient commercial importance, such as Ascophyllum nodosum, that they have become subjects of extensive research in their own right. Brown algae belong to a very large group, the Heterokontophyta, a eukaryotic group of organisms distinguished most prominently by having chloroplasts surrounded by four membranes, suggesting an origin from a symbiotic relationship between a basal eukaryote and another eukaryotic organism. Most brown algae contain the pigment fucoxanthin, which is responsible for the distinctive greenish-brown color that gives them their name. Brown algae are unique among heterokonts in developing into multicellular forms with differentiated tissues, but they reproduce by means of flagellate spores and gametes, which closely resemble other heterokont cells. Genetic studies show their closest relatives to be the yellow-green algae.