Ok so i know that Helminths are all worms and all have adhesions like cestodes [tapeworms], trematodes [flukes], nematodes [roundworms]
Protozoas their characteristic is on a bases of motility like Amoebas, cillia, flagella, and sporozoans
Fungi are well...just fungus that absorb their nutrition from environment or from people. some are sexual and others are asexual ...which brings me to my question!!! How do Algae move???? or do they just glide like the green algae from the ocean?!? what i want to know if they all have some special characteristic that characterizes all of the Algae??? like the the Gonyaulax, Gymnodinium brevae, pfiesteria???
sorry if this is a dumb question but all my book says is that they are photosyntheitc eukaryotes, and that most of them are aquatic and their pigments absorb energy
Protozoas their characteristic is on a bases of motility like Amoebas, cillia, flagella, and sporozoans
Fungi are well...just fungus that absorb their nutrition from environment or from people. some are sexual and others are asexual ...which brings me to my question!!! How do Algae move???? or do they just glide like the green algae from the ocean?!? what i want to know if they all have some special characteristic that characterizes all of the Algae??? like the the Gonyaulax, Gymnodinium brevae, pfiesteria???
sorry if this is a dumb question but all my book says is that they are photosyntheitc eukaryotes, and that most of them are aquatic and their pigments absorb energy
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- How do algae move? Flagella (Except Rhodophyceae which do not have flagella, they are carried passively by the water currents)
- Is there a special characteristic that characterises all of the Algae?
The most comprehensive and authorative classification of algae was given by F.E Fritsch
His classification was based on such criteria as pigmentation, types of flagella, Food storage, cell wall and methods of reproduction.
He divided algae into 11 classes of which important are, Chlorophyceae, Xanthophyceae, Bacillariophyceae, Phaeophyceae and Rhodophyceae
(Refer the first link in the source for a tabular explanation of their classification)
Based only on Flagella, the characteristics of the 5 major classes are as follows:
Chlorophyceae: 2,4 anterior, unequal, whiplash
Xanthophyceae: 2 anterior, unequal, whiplash, tinsel
Bacillariophyceae: 1 anterior, tinsel
Phaeophyceae: 2 unequal, lateral, w,t
Rhodophyceae: absent
Gonyaulax, Gymnodinium brevae, pfiesteria are all dinoflagellates (Come under Pyrrophyceae)
The division Pyrrophyta (or pyrrophyceae) comprises a large number of unusual algal species of many shapes and sizes.
The name "dinoflagellate" refers to the forward- spiraling swimming motion of these organisms. They are free-swimming protists with two flagella, a nucleus with condensed chromosomes, chloroplasts, mitochondria, and Golgi bodies. Biochemically, photosynthetic species possess green pigments, chlorophylls a and c, and golden brown pigments, including peridinin. Dinoflagellates primarily exhibit asexual cell division, some species reproduce sexually, while others have unusual life cycles.
- Is there a special characteristic that characterises all of the Algae?
The most comprehensive and authorative classification of algae was given by F.E Fritsch
His classification was based on such criteria as pigmentation, types of flagella, Food storage, cell wall and methods of reproduction.
He divided algae into 11 classes of which important are, Chlorophyceae, Xanthophyceae, Bacillariophyceae, Phaeophyceae and Rhodophyceae
(Refer the first link in the source for a tabular explanation of their classification)
Based only on Flagella, the characteristics of the 5 major classes are as follows:
Chlorophyceae: 2,4 anterior, unequal, whiplash
Xanthophyceae: 2 anterior, unequal, whiplash, tinsel
Bacillariophyceae: 1 anterior, tinsel
Phaeophyceae: 2 unequal, lateral, w,t
Rhodophyceae: absent
Gonyaulax, Gymnodinium brevae, pfiesteria are all dinoflagellates (Come under Pyrrophyceae)
The division Pyrrophyta (or pyrrophyceae) comprises a large number of unusual algal species of many shapes and sizes.
The name "dinoflagellate" refers to the forward- spiraling swimming motion of these organisms. They are free-swimming protists with two flagella, a nucleus with condensed chromosomes, chloroplasts, mitochondria, and Golgi bodies. Biochemically, photosynthetic species possess green pigments, chlorophylls a and c, and golden brown pigments, including peridinin. Dinoflagellates primarily exhibit asexual cell division, some species reproduce sexually, while others have unusual life cycles.
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I haven't done microbiology in two years but a quick google search cleared up your question right away :D
http://science.jrank.org/pages/205/Algae…
Basically for all types of algae, flagella are used. However, different species have different sets of flagella.
If you want to know specifics, control + f that article above for locomotion
http://science.jrank.org/pages/205/Algae…
Basically for all types of algae, flagella are used. However, different species have different sets of flagella.
If you want to know specifics, control + f that article above for locomotion