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) Describe the following bacterial arrangements: a. Diplo - _____________________________ c. Tetrads – ______________________________ b. Strepto...

) Describe the following bacterial arrangements: a. Diplo - _____________________________ c. Tetrads – ______________________________ b. Strepto – __________________________ d. Staphylo - _______________________________

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Answer #1

* Cocci are spherical or oval bacteria having different shapes based on their planes of division.

*Diplococcus and streptococcus are arranged in one plane division but in different manner.

a) Diplococcus:- Cocci arranged in pairs(Streptococcus pneumoniae).

b) Streptococcus:- Cocci arranged in chains(Streptococcus pyogenes).

c)Tetrads:- Two plane division produces a tetrad arrangement. Cocci arranged in squares of four(micrococcus luteus).

d) Staphylococcus:- Random plane division produces a Staphylococcus arrangement. The cocci arranged in irregular and often grape like clusters(Staphylococcus aureus).

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