Salmonell Salmonella ( Anthrax )

3537 WordsOct 22, 201415 Pages
Salmonella enterica 1. Kingdom: Bacteria Phylum: Proteobacteria Class: Gammaproteobacteria Order: Enterobacteriales Family: Enterobacteriaceae Genus: Salmonella Species: enterica Salmonella enterica (S. enterica) is a harmful gram-negative bacterium, which like all other bacteria grows in colonies. Bacteria can be grouped as cocci, bacillus or spirillum. Salmonella bacteria are rod shaped (bacillus) which can function both with and without oxygen. Each single bacterium has DNA, a cytoplasm, cell membrane to control substances entering and leaving the cell and a cell wall to hold the structure together. In particular Salmonella has all of the above as well as flagella to help with movement and fimbriae which aids the bacterium to adhere to their environment such as the small intestine. Salmonella can be found in animals or humans and is transferred through ingestion of contaminated foods. Salmonella enterica are very tiny, and cannot be seen by the human eye, on a pin head alone there are 100,000 bacteria. Humans can become sick from ingesting as few as 20 bacteria. Salmonella enterica bacteria are approximately 4 micrometres long and 1 micrometre in diameter (A micrometre is one thousand times smaller than a millimetre). These tiny organisms can travel into the human through foods, drinks, pens, cigarettes etc. virtually anything that touches the mouth. Source 2, 5 Lactobacillus delbrueckii (L. delbrueckii) is a gram-positive bacterium, and unlike salmonella, is a

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