These are the three different shapes of bacteria, and the two arrangements of bacteria. From left to right in order the bacteria type is: spirillum, bacillus, coccus, streptobacillus, staphlobacillus, staphlococcus, and streptococcus.
In these pictures the structure of a bacteria is shown, as well as the different organelles. The functions of these organelles are:
Flagellum- the thing that the bacteria uses to move.
Cell Wall- provides a rigid framework for the organism and helps determine it shape.
Plasma Membrane- is a boundary layer and it acts as a transport for material that goes in and out of the cell.
Pilus- used to help a bacteria anchor itself to a surface, and it also exchanges genetic material between bacterial cells.
Mesosome- serves as a sight for attachment of DNA during replication in bacterial reproduction.
Nucleoid- the region of cytoplasm occupied by the chromosome in a bacteria. This chromosome has no membrane or covering. It is folded over many times.
Plasmid- a smaller molecule of DNA that forms closed loops in the cytoplasm apart from chromosomes.
Cytoplasm- a gelatinous mass of proteins, carbohydrates, and other organic and inorganic chemical substances.
Ribosomes- the sites of protein synthesis.
Endospore- an organelle used fr survival in harsh conditions.
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