Question

Photoautotrophic bacteria have
A)Chloroplast
B)Grana
C)Chromatophore
D)Carotene

Answer 1

Hint: Photoautotrophs are species that, through the photosynthesis process, can produce their own energy using light and carbon dioxide. A combination of autotroph, the term for an organism that produces its own food, and the prefix camera, which means "light," is the word photoautotroph.

Complete answer:
Photoautotrophic bacteria are certain bacteria that are capable of using sunlight to generate energy. Chromatophores comprise these bacteria. Chromatophores are cells carrying pigments. It contains the light-harvesting pigment bacteriochlorophyll. Green sulfur bacteria, or purple bacteria, are examples of photosynthetic bacteria.
Many of the phototrophs that are well-recognized are autotrophic, also known as photoautotrophs, and can fix carbon. They can be contrasted by the oxidation of electron donors in their environments with chemotrophs that receive their energy. Photoautotrophs are capable of using light as an energy source to synthesize their own food from inorganic compounds. Photoautotrophs are verdant plants and photosynthetic bacteria. Holophytic species are often referred to as photoautotrophic. These organisms derive their energy from light for food synthesis and are able to use carbon dioxide as their primary source of carbon.

Chemoheterotrophs, using inorganic electron sources such as sulfur or chemoorganoheterotrophs, may be chemolithoheterotrophs, using organic electron sources such as sugars, lipids, and proteins. Examples of chemoheterotrophs, who derive much of their nutrition from $O_2$ , are most animals and fungi.

Hence, the correct answer is option (C)

Note: Chemoheterotrophs, using inorganic electron sources such as sulfur or chemoorganoheterotrophs, may be chemolithoheterotrophs, using organic electron sources such as sugars, lipids, and proteins. Examples of chemoheterotrophs, who derive much of their nutrition from $O_2$ , are most animals and fungi.