Cellular Structure of Bacteria

The basic components of bacterial cells are:- Cell wall Plasma membrane Cytoplasm Chromosome Ribosome The outer most structure of bacteria is the cell wall a semi rigid envelope that maintains the integrity of the cell in the same way that the skin maintains the integrity of the human body. The cell wall helps protect the cell against environmental changes for example heat, cold and drugs that would otherwise damage or destroy it. It...

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Pathogenic Sub-Type

In a human body normal flora a normally harmless bacteria that lives primarily on the skin and in the eyes, mouth, upper respiratory system, the gastrointestinal tract mainly in the large intestine (colon) and urogenital tract; however under certain conditions some of the normal flora may be become pathogenic then by causing opportunistic infections The co-existence of bacteria and the human hosts is called symbiosis; normal flora existing...

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Bacterial Transmission

The sites which bacteria live and multiply are called reservoirs; the three main reservoirs of the pathogenic bacteria are humans, animals and non-living matters; the human body is considered to be a reservoir both in terms of the normal flora that inhabit it and the bacteria that can enter the body from exogenous sources; Diphtheria and Streptococcal infections are some of the disease that spread from human reservoirs and such diseases are...

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Classification System of Bacteria

Based on differences in the cell wall structure the kingdom prokaryote is divided into four of divisions:- ·         Gram positive cell walls. ·         Gram negative cell walls. ·         Cells without walls. ·         Cells with unusual walls. The bacterial sub-types are next classified...

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External Structure of Bacteria

A capsule is gel like compound  that surrounds the exterior of some bacterial cells; the gel compound is produced inside the bacterial cell and is excreted outside it and it attached firmly to the cell exterior; in some bacteria this material is not organized and is more loosely attached; in this case it is called a slime layer; a capsule can help bacterium to survive from harmful environmental changes and provide effective protection...

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