Class 11 · Cell: The Unit of Life

Ribosome Structure and Location — NEET Biology

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📖 NCERT Source

Ribosomes are non-membrane bound organelles found in all cells – both eukaryotic as well as prokaryotic. Within the cell, ribosomes are found not only in the cytoplasm but also within the two organelles – chloroplasts (in plants) and mitochondria and on rough ER.

NCERT Biology · Class 11 · Chapter 8 · Paragraph 14
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Assertion (A): Eukaryotic cells have ribosomes in multiple cellular locations. Reason (R): Within the cell, ribosomes are found only in the cytoplasm and not in any organelles.

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Correct answer: C If assertion is true but reason is false.

The Assertion is true - NCERT describes ribosomes in multiple locations. However, NCERT states “Within the cell, ribosomes are found not only in the cytoplasm but also within the two organelles – chloroplasts (in plants) and mitochondria and on rough ER.” The Reason falsely limits ribosomes to cytoplasm only.

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What does NCERT say about Ribosomes are non-membrane bound?
Ribosomes are non-membrane bound organelles found in all cells – both eukaryotic as well as prokaryotic. Within the cell, ribosomes are found not only in the cytoplasm but also within the two organelles – chloroplasts (in plants) and mitochondria and on rough ER.
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Which chapter is this from?
Cell: The Unit of Life, Class 11 NCERT Biology.

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