Question
Non-membrane bound cell organelles found in both prokaryotic and eukaryotic cells are : ____________________
This question was previously asked in
NEET UG Re-Exam 2026 Question Paper (21-Jun-2026)
The correct answer is
Ribosomes
Identifying Non-Membrane Bound Organelles in Prokaryotes and Eukaryotes
The question asks to identify cell organelles that lack a membrane and are present in both prokaryotic and eukaryotic cells. Understanding the structure and presence of various organelles is key to answering this.
Organelle Characteristics Analysis
Let's analyze the options based on whether they are membrane-bound and their presence in prokaryotic and eukaryotic cells:
- Mitochondria: These are double-membrane bound organelles found only in eukaryotic cells. They are absent in prokaryotes.
- Lysosomes: These are single-membrane bound organelles containing digestive enzymes, found in eukaryotic cells. They are absent in prokaryotes.
- Centrosomes: These are structures involved in cell division in eukaryotic cells, typically lacking a membrane but not found in prokaryotes.
- Ribosomes: These are granular structures responsible for protein synthesis. They are non-membrane bound and are found in both prokaryotic and eukaryotic cells (though differing slightly in size, 70S in prokaryotes and 80S in eukaryotes).
Conclusion on Organelle Presence
Based on the analysis, only ribosomes fit the criteria of being non-membrane bound and present in both prokaryotic and eukaryotic cells.
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$$ \begin{array}{cc} \text{X} & \text{Y} \\ | & | \\ \text{C} - & \text{C} \end{array} \xrightarrow{E} \text{X} - \text{Y} + \text{C} = \text{C} $$
(Substrate) $\quad$ (Product) (Product)
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Important Questions from Structure and Function of Cell
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Choose the correct answer from the options given below :
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