What is the function of the ribosome? Where is the ribosome made and where does it carry out its activity?
A) Function: Protein synthesis. Made: Ribosomes are made in the nucleolus of the nucleus. Activity: Ribosomes carry out protein synthesis in the cytoplasm and on the rough endoplasmic reticulum.
B) Function: Lipid synthesis. Made: Ribosomes are made in the nucleolus of the nucleus. Activity: Ribosomes carry out lipid synthesis in the cytoplasm and on the smooth endoplasmic reticulum.
C) Function: DNA replication. Made: Ribosomes are made in the nucleus. Activity: Ribosomes carry out DNA replication in the cytoplasm.
D) Function: RNA transcription. Made: Ribosomes are made in the nucleolus of the nucleus. Activity: Ribosomes carry out RNA transcription in the cytoplasm.

A) Function: Protein synthesis. Made: Ribosomes are made in the nucleolus of the nucleus. Activity: Ribosomes carry out protein synthesis in the cytoplasm and on the rough endoplasmic reticulum.

Explanation:

- The primary function of ribosomes is protein synthesis.

- Ribosomes are synthesized or made in the nucleolus, a substructure of the cell nucleus.

- The actual activity of protein synthesis takes place in the cytoplasm, where free ribosomes float, and on the rough endoplasmic reticulum (ER). The rough ER is studded with ribosomes on its surface and is involved in the synthesis of proteins that are either secreted from the cell or inserted into membranes.