Question

In multicellular organisms, the 70S ribosomes are found in the following parts of the cells

• A. lysosomes
• B. mitochondria
• C. nucleus
• D. endoplasmic reticulum

Answer 1

The correct option is B mitochondria

Mitochondria in multicellular organisms are small granular or filamentous bodies. The mitochondrion is called the "powerhouse of the cell" because it is associated with cellular respiration and energy generation in the cell. Mitochondria contain ribosomes which are responsible for the synthesis of some mitochondrial proteins. These ribosomes are of the 70S type.
Lysosomes have no ribosomes. Nucleus and endoplasmic reticulum have ribosomes, but they are the usual 80S ribosomes present in the eukaryotic cells.