Why do ribosomes require Mg²+ ions?
Correct answer: C. To stabilize the ribosomal structure
- A. To synthesize protein
- B. To transport amino acid to ribosome
- C. To stabilize the ribosomal structure
- D. To develop mRNA molecules
- E. To break down RNA molecules
Explanation
Ribosomes are complex structures made of RNA and proteins. The RNA molecules have a lot of negative charges due to their phosphate backbone. Mg²⁺ ions help to neutralize these charges, acting like a "glue" to hold the different components of the ribosome together. This stability is crucial for the ribosome to function properly
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About Cytoplasmic Organelles
Cytoplasmic organelles are the specialized structures suspended in cytoplasm, including mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, vacuoles and centrosomes. Questions compare their structures and functions in animal and plant cells, including chloroplasts and the role of the endomembrane system in transport and secretion.
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