Giving Examples, describe the different nutritional groups of bacteria.

No.	Nutritional type	Source of energy	Source of carbon	Source of hydrogen	examples
1	Photoautotrophs	Sunlight	CO₂	H₂S	Green sulphurbacteria
2	Photoautotrophs	sunlight	CO₂	H₂O	cyanobacteria
3	photoheterotroph	Light	Organic compounds	Organic compounds	Purple non sulpur bacteria
4	Chemoautotrophs	Inorganic compounds such as NH₃, NO₂, H₂, H₂S	CO₂	H₂O	Nitrifying bacteria, nirobacter
5	heterotrophs	Organic compound	Organic compounds		Most bacteria

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