Bacteria

Difference Between Photoautotrophic and Chemoautotrophic Nutrition

In bacteria their is mainly two modes of nutrition autotrophic and hetertrophic. The autotrophes are further divided into types by their ability. They make make food by utilizing different resources. So on the basis of nutrition, the bacteria is divided into following types. What is Metabolism? All chemical reactions that occur in (living body) organisms is called metabolism. Metabolism is ...

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Structure and Function of Bacterial Flagella

Flagella singular: flagellum are long, thin, whip-like structures that are attached to a bacterial cell that allows the bacteria for movement. Function They helps in movement (locomotion) of bacteria from one place to another. Structure of Flagella in Bacteria Composed of three structures in bacteria. Gram Positive Bacteria                    Gram Negative Bacteria In gram positive bacteria two rings are present. S ...

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How are Plasmids Used in Genetic Engineering

Plasmids are small, Circular, Double Stranded DNA molecules that is distinct from the chromosomal DNA of the cell. The term Plasmid was discovered by Tatum. And was coined by a Lederberg and Hays. Along with main genetic material nucleoid and There is also present an extra chromosomal genetic material called plasmid. In modern age, different species of bacteria has different ...

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Oscillatoria Structure and Reproduction

Oscillatoria Taxonomic Position Kingdom: Bacteria Division: Cyanobacteria Class: Cyanophyceae Order: Oscillatoriales Family: Oscillatoreaceae Genus: Oscillatoria Occurrence It occurs in wide variety of habitat. It is common in fresh water, damp place, ditches, drains etc. it is also found as patches on the mud surface. It is most common in moist places where abundant organic matter is present. Patches of entangled ...

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Anabaena

Anabaena Taxonomic Position Kingdom: Bacteria Phylum:    Cyanobacteria Class:       Cyanophyceae Order:      Nostocales Family:     Nostocaceae Genus:     Anabaena Occurrence Anabaena (Gr. Anabaniein=to arise) is a filamentous blue green alga. The genus contains both planktonic species and some that form coatings on other aquatic vegetation. A few species are endophytic and grow in cavities between the leaves of the water fern Azolla ...

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Nostoc classification-structurere and production

Nostoc Taxonomic Position Kingdom: Bacteria Phylum:   Cyanobacteria Class:        Cyanophyceae Order:      Nostocaies Family:     Nostocaceae Genus:     Nostoc Occurrence Nostoc is common in fresh ponds. The large colonies found free floating as small circular balls. It may be attached to the submerged plants. Nostoc can be found in soils on moist rocks, at the bottom of lakes and springs (both fresh- and saltwater), ...

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Cyanobacteria-Blue-green bacteria

Cyanobacteria The name Cyanophyta (Gr. kyanos=blue + phyta= plants) has recently been adopted for this division. The division was named Myxophyta (Gr. + phyton=a plant) previously. It includes a single class Cyanophyceae. Most of the characteristics possessed by the members of this division are similar to those present in the bacteria, therefore these are placed along with bacteria in Kingdom. ...

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General Economic Importance of Bacteria

General Economic Importance of Bacteria The bacteria can be deliberately exploited by humans in a number of beneficial ways. However, some bacteria play harmful roles, for example they cause disease and spoil food. Thus, economic importance of bacteria includes both their useful and harmful aspects. Useful Bacteria Most bacteria are beneficial to mankind and play some economically important roles. Some ...

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Biological Importance of Bacteria

Biological Importance of Bacteria Bacteria are important for their natural roles in the biosphere, for example role in rhizosphere, nodulation, and nitrogen cycling. Role of Bacteria in Rhizosphere The region where the soil and roots make contact is called the rhizosphere. The rhizosphere is a complex biological system in which the bacterial population is considerably higher on and around the ...

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