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Q: Which of the following cell organelles is composed of ribosomal RNA and proteins ?
  • A. Nucleus
  • B. Lysosome
  • C. Golgi apparatus
  • D. Ribosome
Correct Answer: Option D - Ribosomes are cell organelles that are made up of ribosomal RNA (rRNA) and proteins. They are responsible for protein synthesis in the cell. Ribosomes can be found both free in the cytoplasm and attached to the rough endoplasmic reticulum (RER). Ribosomes play a critical role in translating the generic code into functional proteins. Ribosomes are known as ''Protein factory of cell.''
D. Ribosomes are cell organelles that are made up of ribosomal RNA (rRNA) and proteins. They are responsible for protein synthesis in the cell. Ribosomes can be found both free in the cytoplasm and attached to the rough endoplasmic reticulum (RER). Ribosomes play a critical role in translating the generic code into functional proteins. Ribosomes are known as ''Protein factory of cell.''

Explanations:

Ribosomes are cell organelles that are made up of ribosomal RNA (rRNA) and proteins. They are responsible for protein synthesis in the cell. Ribosomes can be found both free in the cytoplasm and attached to the rough endoplasmic reticulum (RER). Ribosomes play a critical role in translating the generic code into functional proteins. Ribosomes are known as ''Protein factory of cell.''