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What color are unpigmented, moving microorganisms most likely to be?
What color are unpigmented, moving microorganisms most likely to be?
Which organisms are usually greenish or golden-brown?
Which organisms are usually greenish or golden-brown?
What color are organisms that appear blue-green most likely to be?
What color are organisms that appear blue-green most likely to be?
If encountering invertebrates, where should one refer to for identification?
If encountering invertebrates, where should one refer to for identification?
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What is the procedure for making wet mount slides to study microorganisms in pond water?
What is the procedure for making wet mount slides to study microorganisms in pond water?
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Which subkingdom includes animal-like protists in Protozoa and plant-like in Algae?
Which subkingdom includes animal-like protists in Protozoa and plant-like in Algae?
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What distinguishes Protozoa cells from other microorganisms?
What distinguishes Protozoa cells from other microorganisms?
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How do Protozoa reproduce?
How do Protozoa reproduce?
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Which phylum in Subkingdom Protozoa includes Sarcodina (Amoebae) and Mastigophora (Zooflagellates)?
Which phylum in Subkingdom Protozoa includes Sarcodina (Amoebae) and Mastigophora (Zooflagellates)?
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What is the distinguishing feature of Phylum Ciliophora?
What is the distinguishing feature of Phylum Ciliophora?
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What is the characteristic of Phylum Apicomplexa?
What is the characteristic of Phylum Apicomplexa?
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What does Subkingdom Algae include?
What does Subkingdom Algae include?
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Which pigment is unique to cyanobacteria?
Which pigment is unique to cyanobacteria?
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Which group of microorganisms lacks distinct nuclei?
Which group of microorganisms lacks distinct nuclei?
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Which organisms have pigments not contained in chloroplasts but in granules attached to membranes?
Which organisms have pigments not contained in chloroplasts but in granules attached to membranes?
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Which division includes over 1,000 photosynthetic microorganisms?
Which division includes over 1,000 photosynthetic microorganisms?
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Which type of algae is nonfilamentous and nonflagellated?
Which type of algae is nonfilamentous and nonflagellated?
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Which marine species can produce red tides causing water discoloration and odors along coastal shores?
Which marine species can produce red tides causing water discoloration and odors along coastal shores?
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Which algae species are filamentous?
Which algae species are filamentous?
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Which pigment is present in cyanobacteria?
Which pigment is present in cyanobacteria?
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Which type of algae is present in various forms and sizes?
Which type of algae is present in various forms and sizes?
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Which nonfilamentous algae species is present in moist environments?
Which nonfilamentous algae species is present in moist environments?
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Which cyanobacteria species is included in Division Cyanobacteria?
Which cyanobacteria species is included in Division Cyanobacteria?
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Which group of microorganisms is smaller than protists and has rigid cell walls?
Which group of microorganisms is smaller than protists and has rigid cell walls?
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What is the food-storage compound in photosynthetic euglenoids?
What is the food-storage compound in photosynthetic euglenoids?
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Which division contains over 6,000 species with food storage in the form of oils and leucosin?
Which division contains over 6,000 species with food storage in the form of oils and leucosin?
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What are the hard cell walls of diatoms primarily composed of?
What are the hard cell walls of diatoms primarily composed of?
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What is the food-storage compound in brown algae?
What is the food-storage compound in brown algae?
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What is a distinguishing feature of desmids?
What is a distinguishing feature of desmids?
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Which group of microorganisms primarily exist in saltwater?
Which group of microorganisms primarily exist in saltwater?
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What is a characteristic of dinoflagellates?
What is a characteristic of dinoflagellates?
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Which division of algae synthesizes starch for food storage?
Which division of algae synthesizes starch for food storage?
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What is the characteristic of the majority of algae observed in ponds?
What is the characteristic of the majority of algae observed in ponds?
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What is a distinguishing feature of the Chrysophycophyta division?
What is a distinguishing feature of the Chrysophycophyta division?
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What is the distinguishing characteristic of the Chrysophycophyta division?
What is the distinguishing characteristic of the Chrysophycophyta division?
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What is the distinguishing feature of Diatoms?
What is the distinguishing feature of Diatoms?
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What is the food-storage compound in photosynthetic euglenoids?
What is the food-storage compound in photosynthetic euglenoids?
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Which division contains over 6,000 species with food storage in the form of oils and leucosin?
Which division contains over 6,000 species with food storage in the form of oils and leucosin?
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What are the hard cell walls of diatoms primarily composed of?
What are the hard cell walls of diatoms primarily composed of?
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What is the food-storage compound in brown algae?
What is the food-storage compound in brown algae?
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What is a distinguishing feature of desmids?
What is a distinguishing feature of desmids?
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Which group of microorganisms primarily exist in saltwater?
Which group of microorganisms primarily exist in saltwater?
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What is a characteristic of dinoflagellates?
What is a characteristic of dinoflagellates?
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Which division of algae synthesizes starch for food storage?
Which division of algae synthesizes starch for food storage?
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What is the characteristic of the majority of algae observed in ponds?
What is the characteristic of the majority of algae observed in ponds?
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What is a distinguishing feature of the Chrysophycophyta division?
What is a distinguishing feature of the Chrysophycophyta division?
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What is the distinguishing characteristic of the Chrysophycophyta division?
What is the distinguishing characteristic of the Chrysophycophyta division?
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What is the distinguishing feature of Diatoms?
What is the distinguishing feature of Diatoms?
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Study Notes
Microbial Algae and Cyanobacteria
- Some marine Gymnodinium species produce red tides causing water discoloration and odors along coastal shores
- These algae have chlorophylls a and c, and various xanthophylls
- Prokaryotes are smaller than protists, lack distinct nuclei, and have rigid cell walls
- Division Cyanobacteria in Domain Bacteria includes over 1,000 photosynthetic microorganisms
- Cyanobacteria are present in almost all moist environments and have unique pigments such as chlorophyll a, carotene, and c-phycocyanin
- The cellular structure of cyanobacteria differs from eukaryotic algae, with pigments not contained in chloroplasts but in granules attached to membranes
- Filamentous algae species include Rhizoclonium, Cladophora, and Bulbochaete
- Nonfilamentous and nonflagellated algae species include Chlorococcum, Oocystis, and Coelastrum
- Diatoms like Diatoma and Gomphonema are present in various forms and sizes
- Cyanobacteria species include Anabaena, Nodularia, and Arthrospira
- The U.S. Environmental Protection Agency provided images of different algae and cyanobacteria species
- The text is from "Microbiological Applications Lab Manual, Eighth Edition" by The McGraw−Hill Companies, 2001
Microorganisms in the Lab Manual
- The euglenoids, a group of flagellated protists, display characteristics intermediate between algae and protozoa, such as the absence of a cell wall and the presence of a gullet.
- Photosynthetic euglenoids contain chlorophylls a and b, a red stigma, and paramylum as a food-storage compound.
- The Chlorophycophyta group, including green algae, synthesizes starch for food storage and comprises diverse forms, such as Chlamydomonas, Pandorina, and Volvox.
- Desmids, a unique group of green algae, consist of two similar halves or semicells, separated by an isthmus.
- The Chrysophycophyta division, or golden brown algae, contains over 6,000 species with food storage in the form of oils and leucosin, and the presence of chlorophylls a and c and fucoxanthin.
- Diatoms, a subgroup of Chrysophycophyta, have hard cell walls of pectin, cellulose, or silicon oxide that accumulate on the ocean bottom to form diatomite.
- Phaeophycophyta, or brown algae, exist primarily in saltwater, have the same pigments as chrysophycophytes, and store food as laminarin and mannitol.
- Dinoflagellates, a principal group of Pyrrophycophyta, include marine species with cellulose walls, bioluminescent properties, and two flagella.
- The majority of algae observed in ponds belong to the Chlorophycophyta group.
- The diversity of the Chlorophycophyta group is too great to explore its subdivisions in this preliminary study.
- The desmids consist of two similar halves or semicells, usually separated by an isthmus.
- The Chrysophycophyta division consists of over 6,000 species and differs from other algae in food storage and pigment composition.
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Description
Test your knowledge of microbial algae and cyanobacteria with this quiz covering their characteristics, classifications, and unique features. From red tides to golden brown algae, diatoms, and dinoflagellates, explore the diverse world of microorganisms in various aquatic environments.
