Photoautotrophic bacteria have

Chloroplast

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Grana

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Chromatophore

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Carotene

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Solution

The correct option is B Chromatophore
Photoautotrophic bacteria are those bacteria which are capable of producing energy using sunlight. These bacteria contain chromatophores. Chromatophores are pigment-containing cells. It contains bacteriochlorophyll, a light-harvesting pigment. Examples of photosynthetic bacteria include green sulfur bacteria, purple bacteria.
Thus, the correct answer is 'Chromatophore.'

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