Cyanobacteria Characteristics and Classification

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Questions and Answers

Which of these are characteristics of cyanobacteria?

  • Photosynthetic (correct)
  • Oxygenic (correct)
  • Eukaryotic
  • Prokaryotic (correct)

What is the classification of Gleocapsa?

Cyanobacteria

Where is Gleocapsa commonly found?

Freshwater

How does Gleocapsa grow?

<p>Colonial (D)</p> Signup and view all the answers

What is the classification of Anabeana?

<p>Cyanobacteria</p> Signup and view all the answers

Where can Anabeana be found?

<p>Freshwater</p> Signup and view all the answers

What does Anabeana resemble as it grows?

<p>Strings of pearls (A)</p> Signup and view all the answers

What is the classification of Oscillatoria?

<p>Cyanobacteria</p> Signup and view all the answers

Where is Oscillatoria usually found?

<p>Freshwater</p> Signup and view all the answers

What is the growth form of Oscillatoria?

<p>Unbranched and filamentous (B)</p> Signup and view all the answers

Which of the following are characteristics of algae?

<p>Eukaryotic (A), Oxygenic (B), Photosynthetic (D)</p> Signup and view all the answers

What factors are considered in the classification of algae?

<p>Types of photosynthetic pigments (B), Cell wall composition (C), Photosynthetic storage products (D)</p> Signup and view all the answers

What is the classification of Chrystophyta?

<p>Algae</p> Signup and view all the answers

Which of the following describes Chrystophyta?

<p>Golden brown algae (A), Diatoms (B), Silica in cell wall (C)</p> Signup and view all the answers

What is the growth form of Chrystophyta?

<p>Unicellular (B)</p> Signup and view all the answers

Where can Chrystophyta be found?

<p>Marine (B), Freshwater (C)</p> Signup and view all the answers

What is the classification of Euglenophyta?

<p>Algae</p> Signup and view all the answers

How does Euglenophyta grow?

<p>Unicellular (D)</p> Signup and view all the answers

Where can Euglenophyta typically be found?

<p>Freshwater, marine</p> Signup and view all the answers

What is the classification of Chlorophyta?

<p>Algae</p> Signup and view all the answers

What are the characteristics of Chlorophyta?

<p>Green algae</p> Signup and view all the answers

What is the growth diversity of Chlorophyta?

<p>All of the above (D)</p> Signup and view all the answers

What is an example of an Euglenophyta organism?

<p>Euglena gracilis</p> Signup and view all the answers

Where can Chlorophyta be found?

<p>Freshwater, soils, marine</p> Signup and view all the answers

Which organisms are examples of Chlorophyta?

<p>Spirogyra (A), Volvox aureus (D)</p> Signup and view all the answers

Which of the following characteristics describe protozoa?

<p>All of the above (D)</p> Signup and view all the answers

What is the classification guideline of Protozoa?

<p>Means of locomotion</p> Signup and view all the answers

What is the classification of Sarcodina?

<p>Protozoa</p> Signup and view all the answers

What type of motility do Sarcodina exhibit?

<p>Pseudopods (C)</p> Signup and view all the answers

What is an example of a Sarcodina organism?

<p>Amoeba - free living</p> Signup and view all the answers

What is the classification of Ciliophora?

<p>Protozoa</p> Signup and view all the answers

Which of these are examples of Ciliophora organisms?

<p>Paramecium caudatum (B), Stentor (D)</p> Signup and view all the answers

What is the classification of Mastigophora?

<p>Protozoa</p> Signup and view all the answers

What are the characteristics of Mastigophora?

<p>Flagellated</p> Signup and view all the answers

Which organism belongs to the Mastigophora classification?

<p>Trypanasoma gambiense (C)</p> Signup and view all the answers

What are the characteristics of Trypanasoma gambiense?

<p>Causes African sleeping sickness (C), Human parasite (D)</p> Signup and view all the answers

What is the classification of Sporozoa?

<p>Protozoa</p> Signup and view all the answers

Which of these characteristics describe Sporozoa?

<p>Spore producing (B), Non-motile (D)</p> Signup and view all the answers

What is an example of a Sporozoa organism?

<p>Plasmodium</p> Signup and view all the answers

What are the characteristics of Plasmodium?

<p>Causes malaria (C), Human parasite (D)</p> Signup and view all the answers

What are the characteristics of Ciliophora?

<p>Ciliated</p> Signup and view all the answers

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Study Notes

Cyanobacteria

  • Characteristics: Oxygenic, photosynthetic, and prokaryotic organisms.
  • Gleocapsa: Freshwater cyanobacteria growing in colonial forms of 2, 4, 8, or 16 cells.
  • Anabeana: Freshwater cyanobacteria growing filamentously, resembling strings of pearls.
  • Oscillatoria: Freshwater cyanobacteria that are unbranched and filamentous, growing like a stack of pennies.

Algae

  • Characteristics: Oxygenic, photosynthetic, eukaryotic organisms containing chlorophylls and other pigments.
  • Classification Guidelines: Based on types of photosynthetic pigments, cell wall composition, and photosynthetic storage products.
  • Chrystophyta: Golden brown algae including diatoms with silica in their cell walls, typically unicellular and found in freshwater and marine environments.
  • Euglenophyta: Unicellular, flagellated algae found in freshwater and marine habitats, e.g., Euglena gracilis.
  • Chlorophyta: Green algae, can be unicellular, colonial, or multicellular, found in freshwater, soils, and marine locations (e.g., Volvox aureus and Spirogyra).

Protozoa

  • Characteristics: Unicellular and heterotrophic organisms lacking a cell wall.
  • Classification Guidelines: Determined by their means of locomotion.
  • Sarcodina: Protozoa using pseudopods for motility, such as free-living amoebas.
  • Ciliophora: Characterized by cilia; notable organisms include Paramecium caudatum and Stentor.
  • Mastigophora: Flagellated protozoa, represented by Trypanasoma gambiense, a human parasite causing African sleeping sickness.
  • Sporozoa: Non-motile spore-producing protozoa, with Plasmodium as a key organism responsible for malaria.

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