Cyanobacteria Diagrams, Structure and Examples | Free Biology Notes

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1 month ago

May 27, 2025

In this article we will discuss about cyanobacteria diagram, Structure and Examples

Structure of Cyanobacteria

Sheeth: It is a protective outer layer that surrounds the cyanobacteria cell
Cell wall: A rigid outer structure that provides support and protection
Gas vacuole: It allows the cyanobacteria to float in water by regulating its buoyancy
Phycobilisome: A light-harvesting complex and absorbs light and transfers the energy to the reaction center in the photosynthetic process
Thylakoid: Where the photosynthetic process takes place
DNA: The genetic material of the cell that contains the instructions for the cell’s development and functioning
Carboxysome: A protein shell inside the cyanobacteria cell that contains the enzyme responsible for carbon fixation during photosynthesis
Ribosome: A cellular structure responsible for protein synthesis
Cyanophycin: A nitrogen storage and transport polymer

Anabaena: It is a filamentous cyanobacterium known for its ability to fix nitrogen and form specialized cells called heterocysts.
Spirulina: It is a spiral-shaped cyanobacterium that’s often consumed as a dietary supplement due to its high protein content and potential health benefits.
Nostoc: It is a genus of cyanobacteria that forms colonies of gelatinous spheres. It’s found in a variety of habitats, including soil, freshwater, and even symbiotically with certain plants.
Microcystis: It is found in freshwater ecosystems. Some species can produce toxins under certain conditions, causing harmful algal blooms.
Gloeocapsa: It is a unicellular cyanobacterium commonly found in terrestrial environments. It’s known for forming colonies on rocks, soil, and building surfaces, contributing to the formation of biological crusts.

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