Question

The only cell organelle seen in a prokaryotic cell is

• A. Mitochondria
• B. Ribosomes
• C. Plastids
• D. Lysosomes

Answer 1

The correct option is B

Ribosomes

The correct option is B.

Explanation of the correct option :

1. Cells are of two types, prokaryotic and eukaryotic.
2. Unlike eukaryotic cells, prokaryotic cells, being primitive lack a well-defined nucleus and membrane-bound organelles.
3. Ribosomes are the organelles common to both types of cells.
4. In the case of prokaryotes, 70s ribosomes are present.
5. Eukaryotic cells have 80s ribosomes.

Explanation of the incorrect option :

Option A:

Mitochondria also called the powerhouse of cells, is present in eukaryotic cells only.

Option C:

Plastids are present in eukaryotic plant cells, meant for photosynthesis.

Option D:

Lysosomes are a feature of eukaryotic cells only and help in digesting cellular components.

Final answer: The only cell organelle seen in a prokaryotic cell is ribosomes.