Question

unicellular prokaryotes, called , contain chloroplast

Answer 1

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While cyanobacteria were traditionally considered algae, they are now classified as bacteria and therefore prokaryotes due to large differences such as the lack of a cell nucleus or membrane-bound organelles, the presence of a single circular chromosome, the presence of peptidoglycan in the cell walls, and ribosomes different in size and content from those of the eukaryotes.[15][16] Rather than in chloroplasts, they conduct photosynthesis on specialized infolded cytoplasmic membranes called thylakoid membranes. Therefore, they differ significantly from algae despite occupying similar ecological niches.

http://en.wikipedia.org/wiki/Algae

Answer 2

Cyanobacteria /saɪˌænoʊbækˈtɪəriə/, also known as Cyanophyta, is a phylum of bacteria that obtain their energy through photosynthesis

http://en.wikipedia.org/wiki/Cyanobacteria