Question

There are two types of organisms known to us based on cell types: prokaryote and eukaryote. Among the given features, select the one that distinguishes prokaryotic organisms from eukaryotic organisms.

• A. Prokaryotes are unicellular, while all eukaryotes are multicellular.
• B. Prokaryotes are aquatic, while eukaryotes are terrestrial.
• C. Prokaryotes are structurally less complex than eukaryotes are.
• D. Prokaryotes lack cell membrane, while eukaryotes do not.

Answer 1

Answer: (C)

Prokaryotes are cells that are characterized by lack of membrane-bound organelles like nucleus, Golgi body, etc. These cells are of simple design and generally have cell wall around their cell membrane for support and rigidity. Organisms of this cell type are found in various habitat and not exclusively in water. These are found to be unicellular. Eukaryotes, on the other hand, are more complex and have membrane-bound organelles like nucleus. These organisms can be found as unicellular (Amoeba) and multicellular (human). Also, eukaryotes are not exclusively terrestrial; they are found in other habitats too.