Bacteria

Give answers to the following bacteria quiz questions. Following are the bacteria quiz questions, students can prepare these questions for their important quiz tests. What is conjugation? Is it a sexual mating? Ans: The transfer of genetic material between bacteria through cell-to-cell contact is called bacterial conjugation. Bacterial is often incorrectly regarded as sexual reproduction or mating. It does not ...

Following are bacteria test questions important for test and papers. Give composition or cell wall of bacteria? Ans: The cell walls of most bacteria have a unique macromolecule called peptidoglycan. Its amount is different in different types of bacteria. It is composed of long framework of glycan (glucose) chains. These glycan chains are linked with peptide fragments. The intact cell ...

The classification of bacteria is determined on the basis of their form, structure, mode of nutrition, the environment they are living in or their habitat. Since bacteria are cosmopolitan and found everywhere on earth. Classification of Bacteria Classification of Bacteria is as follow: Archeobacteria They are the most primitive organisms on the earth. The lack peptidoglycan in their cell wall. ...

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 ...

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 ...

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 ...

Bacterial cell walls are made of peptidoglycan (also called murein). on the basis of their bacterial cell wall the bacteria are of two types. The first one is gram positive bacteria and second one is gram negative bacteria. The difference between these two are as follow. Gram Positive Bacteria Gram Negative Bacteria Four amino acids are present in gram positive ...

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 ...

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 ...

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), ...