Question

Which of the following are prokaryotes?

• A. Bacteria
• B. Blue green algae
• C. Both of these
• D. None of these

Answer 1

Answer: (A), (B)

The correct options are
A

Bacteria

B

Blue green algae

All living cells is divided into two groups - prokaryotes and eukaryotes. Viruses lack cellular machinery and can survive only inside a host. Hence, viruses do not fall into any of these groups. Prokaryotes are characterised by their lack of a well-defined nucleus and membrane-bound organelles. All bacteria such as E. coli, Salmonella typhi, etc. are prokaryotes. Amoeba has a well-defined nucleus. Therefore, it is a unicellular, eukaryotic organism.